diff --git a/.gitignore b/.gitignore
new file mode 100644
index 00000000..3d4b9b68
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,4 @@
+.idea/
+vendor
+composer.lock
+.phpunit.result.cache
diff --git a/examples/php/behavioral/chain_of_responsibility/Account.php b/examples/php/behavioral/chain_of_responsibility/Account.php
new file mode 100644
index 00000000..11a927c3
--- /dev/null
+++ b/examples/php/behavioral/chain_of_responsibility/Account.php
@@ -0,0 +1,50 @@
+<?php
+
+namespace design_patterns\behavioral\chain_of_responsibility;
+
+abstract class Account
+{
+    protected ?Account $next = null;
+    protected float $balance;
+
+    public function setNext(Account $account): void
+    {
+        $this->next = $account;
+    }
+
+    public function pay(float $amountToPay): string
+    {
+        if ($this->canPay($amountToPay)) {
+            return $this->payUsing($amountToPay);
+        }
+
+        if ($this->next) {
+            return $this->cantPayUsing() . $this->next->pay($amountToPay);
+        }
+
+        return 'Cannot pay, no more accounts in the chain';
+    }
+
+    private function canPay(float $amount): bool
+    {
+        return $this->balance >= $amount;
+    }
+
+    private function payUsing(float $amountToPay): string
+    {
+        $this->balance -= $amountToPay;
+
+        return sprintf('Paid %s using %s', $amountToPay, $this->getClassName());
+    }
+
+    private function cantPayUsing(): string
+    {
+        return sprintf('Cannot pay using %s. Proceeding ..' . PHP_EOL, $this->getClassName());
+    }
+
+    private function getClassName(): string
+    {
+        $className = explode('\\', static::class);
+        return array_pop($className);
+    }
+}
diff --git a/examples/php/behavioral/chain_of_responsibility/Bank.php b/examples/php/behavioral/chain_of_responsibility/Bank.php
new file mode 100644
index 00000000..0d2ba2aa
--- /dev/null
+++ b/examples/php/behavioral/chain_of_responsibility/Bank.php
@@ -0,0 +1,13 @@
+<?php
+
+namespace design_patterns\behavioral\chain_of_responsibility;
+
+class Bank extends Account
+{
+    protected float $balance;
+
+    public function __construct(float $balance)
+    {
+        $this->balance = $balance;
+    }
+}
diff --git a/examples/php/behavioral/chain_of_responsibility/Bitcoin.php b/examples/php/behavioral/chain_of_responsibility/Bitcoin.php
new file mode 100644
index 00000000..e4c08c12
--- /dev/null
+++ b/examples/php/behavioral/chain_of_responsibility/Bitcoin.php
@@ -0,0 +1,13 @@
+<?php
+
+namespace design_patterns\behavioral\chain_of_responsibility;
+
+class Bitcoin extends Account
+{
+    protected float $balance;
+
+    public function __construct(float $balance)
+    {
+        $this->balance = $balance;
+    }
+}
diff --git a/examples/php/behavioral/chain_of_responsibility/ChainOfResponsibility.png b/examples/php/behavioral/chain_of_responsibility/ChainOfResponsibility.png
new file mode 100644
index 00000000..0f7c52aa
Binary files /dev/null and b/examples/php/behavioral/chain_of_responsibility/ChainOfResponsibility.png differ
diff --git a/examples/php/behavioral/chain_of_responsibility/ChainOfResponsibilityTest.php b/examples/php/behavioral/chain_of_responsibility/ChainOfResponsibilityTest.php
new file mode 100644
index 00000000..74d89b22
--- /dev/null
+++ b/examples/php/behavioral/chain_of_responsibility/ChainOfResponsibilityTest.php
@@ -0,0 +1,58 @@
+<?php
+
+namespace design_patterns\behavioral\chain_of_responsibility;
+
+use PHPUnit\Framework\TestCase;
+
+
+/*
+// Let's prepare a chain like below
+//      $bank->$paypal->$bitcoin
+//
+// First priority bank
+//      If bank can't pay then paypal
+//      If paypal can't pay then bit coin
+
+$bank = new Bank(100);          // Bank with balance 100
+$paypal = new Paypal(200);      // Paypal with balance 200
+$bitcoin = new Bitcoin(300);    // Bitcoin with balance 300
+
+$bank->setNext($paypal);
+$paypal->setNext($bitcoin);
+
+// Let's try to pay using the first priority i.e. bank
+$bank->pay(259);
+
+// Output will be
+// ==============
+// Cannot pay using bank. Proceeding ..
+// Cannot pay using paypal. Proceeding ..:
+// Paid 259 using Bitcoin!
+*/
+
+class ChainOfResponsibilityTest extends TestCase
+{
+    public function test01(): void
+    {
+        $bank = new Bank(100);
+        $paypal = new Paypal(200);
+        $bitcoin = new Bitcoin(300);
+
+        $bank->setNext($paypal);
+        $paypal->setNext($bitcoin);
+
+        self::assertEquals("Cannot pay using Bank. Proceeding ..\nCannot pay using Paypal. Proceeding ..\nPaid 259 using Bitcoin", $bank->pay(259));
+    }
+
+    public function test02(): void
+    {
+        $bank = new Bank(100);
+        $paypal = new Paypal(200);
+        $bitcoin = new Bitcoin(100);
+
+        $bank->setNext($paypal);
+        $paypal->setNext($bitcoin);
+
+        self::assertEquals("Cannot pay using Bank. Proceeding ..\nCannot pay using Paypal. Proceeding ..\nCannot pay, no more accounts in the chain", $bank->pay(259));
+    }
+}
diff --git a/examples/php/behavioral/chain_of_responsibility/Paypal.php b/examples/php/behavioral/chain_of_responsibility/Paypal.php
new file mode 100644
index 00000000..21e03d36
--- /dev/null
+++ b/examples/php/behavioral/chain_of_responsibility/Paypal.php
@@ -0,0 +1,13 @@
+<?php
+
+namespace design_patterns\behavioral\chain_of_responsibility;
+
+class Paypal extends Account
+{
+    protected float $balance;
+
+    public function __construct(float $balance)
+    {
+        $this->balance = $balance;
+    }
+}
diff --git a/examples/php/behavioral/command/Bulb.php b/examples/php/behavioral/command/Bulb.php
new file mode 100644
index 00000000..8c9f9046
--- /dev/null
+++ b/examples/php/behavioral/command/Bulb.php
@@ -0,0 +1,16 @@
+<?php
+
+namespace design_patterns\behavioral\command;
+
+class Bulb
+{
+    public function turnOn(): string
+    {
+        return "Bulb has been lit!";
+    }
+
+    public function turnOff(): string
+    {
+        return "Darkness!";
+    }
+}
diff --git a/examples/php/behavioral/command/Command.php b/examples/php/behavioral/command/Command.php
new file mode 100644
index 00000000..4dacb8d5
--- /dev/null
+++ b/examples/php/behavioral/command/Command.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace design_patterns\behavioral\command;
+
+interface Command
+{
+    public function execute(): string;
+    public function undo(): string;
+    public function redo(): string;
+}
diff --git a/examples/php/behavioral/command/Command.png b/examples/php/behavioral/command/Command.png
new file mode 100644
index 00000000..ef4033d8
Binary files /dev/null and b/examples/php/behavioral/command/Command.png differ
diff --git a/examples/php/behavioral/command/CommandTest.php b/examples/php/behavioral/command/CommandTest.php
new file mode 100644
index 00000000..c11647d4
--- /dev/null
+++ b/examples/php/behavioral/command/CommandTest.php
@@ -0,0 +1,31 @@
+<?php
+
+namespace design_patterns\behavioral\command;
+
+use PHPUnit\Framework\TestCase;
+
+/*
+$bulb = new Bulb();
+
+$turnOn = new TurnOn($bulb);
+$turnOff = new TurnOff($bulb);
+
+$remote = new RemoteControl();
+$remote->submit($turnOn); // Bulb has been lit!
+$remote->submit($turnOff); // Darkness!
+*/
+
+class CommandTest extends TestCase
+{
+    public function test01(): void
+    {
+        $bulb = new Bulb();
+
+        $turnOn = new TurnOn($bulb);
+        $turnOff = new TurnOff($bulb);
+
+        $remote = new RemoteControl();
+        self::assertEquals('Bulb has been lit!', $remote->submit($turnOn));
+        self::assertEquals('Darkness!', $remote->submit($turnOff));
+    }
+}
diff --git a/examples/php/behavioral/command/RemoteControl.php b/examples/php/behavioral/command/RemoteControl.php
new file mode 100644
index 00000000..29b9c073
--- /dev/null
+++ b/examples/php/behavioral/command/RemoteControl.php
@@ -0,0 +1,11 @@
+<?php
+
+namespace design_patterns\behavioral\command;
+
+class RemoteControl
+{
+    public function submit(Command $command): string
+    {
+        return $command->execute();
+    }
+}
diff --git a/examples/php/behavioral/command/TurnOff.php b/examples/php/behavioral/command/TurnOff.php
new file mode 100644
index 00000000..526b8696
--- /dev/null
+++ b/examples/php/behavioral/command/TurnOff.php
@@ -0,0 +1,28 @@
+<?php
+
+namespace design_patterns\behavioral\command;
+
+class TurnOff implements Command
+{
+    private Bulb $bulb;
+
+    public function __construct(Bulb $bulb)
+    {
+        $this->bulb = $bulb;
+    }
+
+    public function execute(): string
+    {
+        return $this->bulb->turnOff();
+    }
+
+    public function undo(): string
+    {
+        return $this->bulb->turnOn();
+    }
+
+    public function redo(): string
+    {
+        return $this->execute();
+    }
+}
diff --git a/examples/php/behavioral/command/TurnOn.php b/examples/php/behavioral/command/TurnOn.php
new file mode 100644
index 00000000..e998e4d2
--- /dev/null
+++ b/examples/php/behavioral/command/TurnOn.php
@@ -0,0 +1,28 @@
+<?php
+
+namespace design_patterns\behavioral\command;
+
+class TurnOn implements Command
+{
+    private Bulb $bulb;
+
+    public function __construct(Bulb $bulb)
+    {
+        $this->bulb = $bulb;
+    }
+
+    public function execute(): string
+    {
+        return $this->bulb->turnOn();
+    }
+
+    public function undo(): string
+    {
+        return $this->bulb->turnOff();
+    }
+
+    public function redo(): string
+    {
+        return $this->execute();
+    }
+}
diff --git a/examples/php/behavioral/interpreter/Interpreter.php b/examples/php/behavioral/interpreter/Interpreter.php
new file mode 100644
index 00000000..a8143662
--- /dev/null
+++ b/examples/php/behavioral/interpreter/Interpreter.php
@@ -0,0 +1 @@
+<?php
\ No newline at end of file
diff --git a/examples/php/behavioral/iterator/Iterator.png b/examples/php/behavioral/iterator/Iterator.png
new file mode 100644
index 00000000..7e3a9ec5
Binary files /dev/null and b/examples/php/behavioral/iterator/Iterator.png differ
diff --git a/examples/php/behavioral/iterator/IteratorTest.php b/examples/php/behavioral/iterator/IteratorTest.php
new file mode 100644
index 00000000..8eaa6279
--- /dev/null
+++ b/examples/php/behavioral/iterator/IteratorTest.php
@@ -0,0 +1,43 @@
+<?php
+
+namespace design_patterns\behavioral\iterator;
+
+use PHPUnit\Framework\TestCase;
+
+/*
+$stationList = new StationList();
+
+$stationList->addStation(new RadioStation(89));
+$stationList->addStation(new RadioStation(101));
+$stationList->addStation(new RadioStation(102));
+$stationList->addStation(new RadioStation(103.2));
+
+foreach($stationList as $station) {
+    echo $station->getFrequency() . PHP_EOL;
+}
+
+$stationList->removeStation(new RadioStation(89)); // Will remove station 89
+*/
+
+class IteratorTest extends TestCase
+{
+    public function test01(): void
+    {
+        $stationList = new StationList();
+
+        $stationList->addStation(new RadioStation(89));
+        $stationList->addStation(new RadioStation(101));
+        $stationList->addStation(new RadioStation(102));
+        $stationList->addStation(new RadioStation(103.2));
+
+        self::assertEquals(4, $stationList->count());
+
+        $expect = [89, 101, 102, 103.2];
+        foreach($stationList as $key => $station) {
+            self::assertEquals($expect[$key], $station->getFrequency());
+        }
+
+        $stationList->removeStation(new RadioStation(89));
+        self::assertEquals(3, $stationList->count());
+    }
+}
diff --git a/examples/php/behavioral/iterator/RadioStation.php b/examples/php/behavioral/iterator/RadioStation.php
new file mode 100644
index 00000000..8fa7971e
--- /dev/null
+++ b/examples/php/behavioral/iterator/RadioStation.php
@@ -0,0 +1,18 @@
+<?php
+
+namespace design_patterns\behavioral\iterator;
+
+class RadioStation
+{
+    private float $frequency;
+
+    public function __construct(float $frequency)
+    {
+        $this->frequency = $frequency;
+    }
+
+    public function getFrequency(): float
+    {
+        return $this->frequency;
+    }
+}
diff --git a/examples/php/behavioral/iterator/StationList.php b/examples/php/behavioral/iterator/StationList.php
new file mode 100644
index 00000000..5b89889b
--- /dev/null
+++ b/examples/php/behavioral/iterator/StationList.php
@@ -0,0 +1,58 @@
+<?php
+
+namespace design_patterns\behavioral\iterator;
+
+use Countable;
+use Iterator;
+
+class StationList implements Countable, Iterator
+{
+    /** @var RadioStation[] $stations */
+    private array $stations = [];
+
+    /** @var int|null $counter */
+    private int $counter;
+
+    public function addStation(RadioStation $station): void
+    {
+        $this->stations[] = $station;
+    }
+
+    public function removeStation(RadioStation $toRemove): void
+    {
+        $toRemoveFrequency = $toRemove->getFrequency();
+        $this->stations = array_filter($this->stations, function (RadioStation $station) use ($toRemoveFrequency) {
+            return $station->getFrequency() !== $toRemoveFrequency;
+        });
+    }
+
+    public function count(): int
+    {
+        return count($this->stations);
+    }
+
+    public function current(): RadioStation
+    {
+        return $this->stations[$this->counter];
+    }
+
+    public function key(): int
+    {
+        return $this->counter;
+    }
+
+    public function next(): void
+    {
+        $this->counter++;
+    }
+
+    public function rewind(): void
+    {
+        $this->counter = 0;
+    }
+
+    public function valid(): bool
+    {
+        return isset($this->stations[$this->counter]);
+    }
+}
diff --git a/examples/php/behavioral/mediator/ChatRoom.php b/examples/php/behavioral/mediator/ChatRoom.php
new file mode 100644
index 00000000..2bb4f715
--- /dev/null
+++ b/examples/php/behavioral/mediator/ChatRoom.php
@@ -0,0 +1,26 @@
+<?php
+
+namespace design_patterns\behavioral\mediator;
+
+class ChatRoom implements ChatRoomMediator
+{
+    private string $time = '';
+
+    public function showMessage(User $user, string $message): string
+    {
+        $time = $this->getTime();
+        $sender = $user->getName();
+
+        return $time . ' [' . $sender . ']: ' . $message;
+    }
+
+    public function setTime(string $time): void
+    {
+        $this->time = $time;
+    }
+
+    private function getTime(): string
+    {
+        return $this->time ? : date('M d, H:i');
+    }
+}
diff --git a/examples/php/behavioral/mediator/ChatRoomMediator.php b/examples/php/behavioral/mediator/ChatRoomMediator.php
new file mode 100644
index 00000000..473f87de
--- /dev/null
+++ b/examples/php/behavioral/mediator/ChatRoomMediator.php
@@ -0,0 +1,8 @@
+<?php
+
+namespace design_patterns\behavioral\mediator;
+
+interface ChatRoomMediator
+{
+    public function showMessage(User $user, string $message): string;
+}
diff --git a/examples/php/behavioral/mediator/Mediator.png b/examples/php/behavioral/mediator/Mediator.png
new file mode 100644
index 00000000..10e9fece
Binary files /dev/null and b/examples/php/behavioral/mediator/Mediator.png differ
diff --git a/examples/php/behavioral/mediator/MediatorTest.php b/examples/php/behavioral/mediator/MediatorTest.php
new file mode 100644
index 00000000..7b076873
--- /dev/null
+++ b/examples/php/behavioral/mediator/MediatorTest.php
@@ -0,0 +1,34 @@
+<?php
+
+namespace design_patterns\behavioral\mediator;
+
+use PHPUnit\Framework\TestCase;
+
+/*
+$mediator = new ChatRoom();
+
+$john = new User('John Doe', $mediator);
+$jane = new User('Jane Doe', $mediator);
+
+$john->send('Hi there!');
+$jane->send('Hey!');
+
+// Output will be
+// Feb 14, 10:58 [John]: Hi there!
+// Feb 14, 10:58 [Jane]: Hey!
+*/
+
+class MediatorTest extends TestCase
+{
+    public function test01(): void
+    {
+        $mediator = new ChatRoom();
+        $mediator->setTime('Feb 14, 10:58');
+
+        $john = new User('John', $mediator);
+        $jane = new User('Jane', $mediator);
+
+        self::assertEquals('Feb 14, 10:58 [John]: Hi there!', $john->send('Hi there!'));
+        self::assertEquals('Feb 14, 10:58 [Jane]: Hey!',$jane ->send('Hey!'));
+    }
+}
diff --git a/examples/php/behavioral/mediator/User.php b/examples/php/behavioral/mediator/User.php
new file mode 100644
index 00000000..ec3d82e0
--- /dev/null
+++ b/examples/php/behavioral/mediator/User.php
@@ -0,0 +1,25 @@
+<?php
+
+namespace design_patterns\behavioral\mediator;
+
+class User
+{
+    private string $name;
+    private ChatRoomMediator $chatMediator;
+
+    public function __construct(string $name, ChatRoomMediator $chatMediator)
+    {
+        $this->name = $name;
+        $this->chatMediator = $chatMediator;
+    }
+
+    public function getName(): string
+    {
+        return $this->name;
+    }
+
+    public function send(string $message): string
+    {
+        return $this->chatMediator->showMessage($this, $message);
+    }
+}
diff --git a/examples/php/behavioral/memento/Editor.php b/examples/php/behavioral/memento/Editor.php
new file mode 100644
index 00000000..f67f3c43
--- /dev/null
+++ b/examples/php/behavioral/memento/Editor.php
@@ -0,0 +1,28 @@
+<?php
+
+namespace design_patterns\behavioral\memento;
+
+class Editor
+{
+    private string $content = '';
+
+    public function type(string $words): void
+    {
+        $this->content .= ' ' . $words;
+    }
+
+    public function getContent(): string
+    {
+        return $this->content;
+    }
+
+    public function save(): EditorMemento
+    {
+        return new EditorMemento($this->content);
+    }
+
+    public function restore(EditorMemento $memento): void
+    {
+        $this->content = $memento->getContent();
+    }
+}
diff --git a/examples/php/behavioral/memento/EditorMemento.php b/examples/php/behavioral/memento/EditorMemento.php
new file mode 100644
index 00000000..2aea6c77
--- /dev/null
+++ b/examples/php/behavioral/memento/EditorMemento.php
@@ -0,0 +1,18 @@
+<?php
+
+namespace design_patterns\behavioral\memento;
+
+class EditorMemento
+{
+    private string $content;
+
+    public function __construct(string $content)
+    {
+        $this->content = $content;
+    }
+
+    public function getContent(): string
+    {
+        return $this->content;
+    }
+}
diff --git a/examples/php/behavioral/memento/Memento.png b/examples/php/behavioral/memento/Memento.png
new file mode 100644
index 00000000..ea70f3da
Binary files /dev/null and b/examples/php/behavioral/memento/Memento.png differ
diff --git a/examples/php/behavioral/memento/MementoTest.php b/examples/php/behavioral/memento/MementoTest.php
new file mode 100644
index 00000000..974716b8
--- /dev/null
+++ b/examples/php/behavioral/memento/MementoTest.php
@@ -0,0 +1,53 @@
+<?php
+
+namespace design_patterns\behavioral\memento;
+
+use PHPUnit\Framework\TestCase;
+
+/*
+$editor = new Editor();
+
+// Type some stuff
+$editor->type('This is the first sentence.');
+$editor->type('This is second.');
+
+// Save the state to restore to : This is the first sentence. This is second.
+$saved = $editor->save();
+
+// Type some more
+$editor->type('And this is third.');
+
+// Output: Content before Saving
+echo $editor->getContent(); // This is the first sentence. This is second. And this is third.
+
+// Restoring to last saved state
+$editor->restore($saved);
+
+$editor->getContent(); // This is the first sentence. This is second.
+*/
+
+class MementoTest extends TestCase
+{
+    public function test01(): void
+    {
+        $editor = new Editor();
+
+        // Type some stuff
+        $editor->type('This is the first sentence.');
+        $editor->type('This is second.');
+
+        // Save the state to restore to : This is the first sentence. This is second.
+        $saved = $editor->save();
+
+        // Type some more
+        $editor->type('And this is third.');
+
+        // Output: Content before Saving
+        self::assertEquals(' This is the first sentence. This is second. And this is third.', $editor->getContent());
+
+        // Restoring to last saved state
+        $editor->restore($saved);
+
+        self::assertEquals(' This is the first sentence. This is second.', $editor->getContent());
+    }
+}
diff --git a/examples/php/behavioral/observer/EmploymentAgency.php b/examples/php/behavioral/observer/EmploymentAgency.php
new file mode 100644
index 00000000..893d7164
--- /dev/null
+++ b/examples/php/behavioral/observer/EmploymentAgency.php
@@ -0,0 +1,28 @@
+<?php
+
+namespace design_patterns\behavioral\observer;
+
+class EmploymentAgency implements Observable
+{
+    private array $observers = [];
+
+    public function notify(JobPost $jobPost): void
+    {
+        foreach ($this->observers as $observer) {
+            $observer->update($jobPost);
+        }
+    }
+
+    public function attach(Observer $observer): void
+    {
+        $this->observers[] = $observer;
+    }
+
+    public function detach(Observer $observer): void
+    {
+        $key = array_search($observer, $this->observers, true);
+        if ($key !== false) {
+            unset($this->observers[$key]);
+        }
+    }
+}
diff --git a/examples/php/behavioral/observer/JobPost.php b/examples/php/behavioral/observer/JobPost.php
new file mode 100644
index 00000000..58cfebc5
--- /dev/null
+++ b/examples/php/behavioral/observer/JobPost.php
@@ -0,0 +1,18 @@
+<?php
+
+namespace design_patterns\behavioral\observer;
+
+class JobPost
+{
+    private string $title;
+
+    public function __construct(string $title)
+    {
+        $this->title = $title;
+    }
+
+    public function getTitle(): string
+    {
+        return $this->title;
+    }
+}
diff --git a/examples/php/behavioral/observer/JobSeeker.php b/examples/php/behavioral/observer/JobSeeker.php
new file mode 100644
index 00000000..0bbf4226
--- /dev/null
+++ b/examples/php/behavioral/observer/JobSeeker.php
@@ -0,0 +1,25 @@
+<?php
+
+namespace design_patterns\behavioral\observer;
+
+class JobSeeker implements Observer
+{
+    private string $name;
+    private string $lastNotice;
+
+    public function __construct(string $name)
+    {
+        $this->name = $name;
+    }
+
+    public function update(JobPost $jobPost): void
+    {
+        // Do something with the job posting
+        $this->lastNotice = 'Hi ' . $this->name . '! New job posted: ' . $jobPost->getTitle();
+    }
+
+    public function getLastNotice(): string
+    {
+        return $this->lastNotice;
+    }
+}
diff --git a/examples/php/behavioral/observer/Observable.php b/examples/php/behavioral/observer/Observable.php
new file mode 100644
index 00000000..e407552a
--- /dev/null
+++ b/examples/php/behavioral/observer/Observable.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace design_patterns\behavioral\observer;
+
+interface Observable
+{
+    public function attach(Observer $observer): void;
+    public function detach(Observer $observer): void;
+    public function notify(JobPost $jobPost): void;
+}
diff --git a/examples/php/behavioral/observer/Observer.php b/examples/php/behavioral/observer/Observer.php
new file mode 100644
index 00000000..d600fcc6
--- /dev/null
+++ b/examples/php/behavioral/observer/Observer.php
@@ -0,0 +1,8 @@
+<?php
+
+namespace design_patterns\behavioral\observer;
+
+interface Observer
+{
+    public function update(JobPost $jobPost): void;
+}
diff --git a/examples/php/behavioral/observer/Observer.png b/examples/php/behavioral/observer/Observer.png
new file mode 100644
index 00000000..e0609af0
Binary files /dev/null and b/examples/php/behavioral/observer/Observer.png differ
diff --git a/examples/php/behavioral/observer/ObserverTest.php b/examples/php/behavioral/observer/ObserverTest.php
new file mode 100644
index 00000000..2221fd31
--- /dev/null
+++ b/examples/php/behavioral/observer/ObserverTest.php
@@ -0,0 +1,55 @@
+<?php
+
+namespace design_patterns\behavioral\observer;
+
+use PHPUnit\Framework\TestCase;
+
+/*
+// Create subscribers
+$johnDoe = new JobSeeker('John Doe');
+$janeDoe = new JobSeeker('Jane Doe');
+
+// Create publisher and attach subscribers
+$jobPostings = new EmploymentAgency();
+$jobPostings->attach($johnDoe);
+$jobPostings->attach($janeDoe);
+
+// Add a new job and see if subscribers get notified
+$jobPostings->addJob(new JobPost('Software Engineer'));
+
+// Output
+// Hi John Doe! New job posted: Software Engineer
+// Hi Jane Doe! New job posted: Software Engineer
+*/
+
+class ObserverTest extends TestCase
+{
+    public function test01(): void
+    {
+        // Create subscribers
+        $johnDoe = new JobSeeker('John Doe');
+        $janeDoe = new JobSeeker('Jane Doe');
+
+        // Create publisher and attach subscribers
+        $jobPostings = new EmploymentAgency();
+        $jobPostings->attach($johnDoe);
+        $jobPostings->attach($janeDoe);
+
+        // Add a new job and see if subscribers get notified
+        $jobPostings->notify(new JobPost('Software Engineer'));
+
+        // Output
+        self::assertEquals('Hi John Doe! New job posted: Software Engineer', $johnDoe->getLastNotice());
+        self::assertEquals('Hi Jane Doe! New job posted: Software Engineer', $janeDoe->getLastNotice());
+
+
+        // Detach a subscriber
+        $jobPostings->detach($janeDoe);
+
+        // Add a new job and see if subscribers get notified
+        $jobPostings->notify(new JobPost('Engineering Manager'));
+
+        self::assertEquals('Hi John Doe! New job posted: Engineering Manager', $johnDoe->getLastNotice());
+        self::assertEquals('Hi Jane Doe! New job posted: Software Engineer', $janeDoe->getLastNotice());
+    }
+}
diff --git a/examples/php/behavioral/state/DefaultText.php b/examples/php/behavioral/state/DefaultText.php
new file mode 100644
index 00000000..024b853d
--- /dev/null
+++ b/examples/php/behavioral/state/DefaultText.php
@@ -0,0 +1,11 @@
+<?php
+
+namespace design_patterns\behavioral\state;
+
+class DefaultText implements WritingState
+{
+    public function write(string $words): string
+    {
+        return $words;
+    }
+}
diff --git a/examples/php/behavioral/state/LowerCase.php b/examples/php/behavioral/state/LowerCase.php
new file mode 100644
index 00000000..4676d708
--- /dev/null
+++ b/examples/php/behavioral/state/LowerCase.php
@@ -0,0 +1,11 @@
+<?php
+
+namespace design_patterns\behavioral\state;
+
+class LowerCase implements WritingState
+{
+    public function write(string $words): string
+    {
+        return strtolower($words);
+    }
+}
diff --git a/examples/php/behavioral/state/State.png b/examples/php/behavioral/state/State.png
new file mode 100644
index 00000000..e23f0148
Binary files /dev/null and b/examples/php/behavioral/state/State.png differ
diff --git a/examples/php/behavioral/state/StateTest.php b/examples/php/behavioral/state/StateTest.php
new file mode 100644
index 00000000..f41ab02d
--- /dev/null
+++ b/examples/php/behavioral/state/StateTest.php
@@ -0,0 +1,76 @@
+<?php
+
+namespace design_patterns\behavioral\state;
+
+use PHPUnit\Framework\TestCase;
+
+/*
+$editor = new TextEditor(new DefaultText());
+
+$editor->type('First line');
+
+$editor->setState(new UpperCase());
+
+$editor->type('Second line');
+$editor->type('Third line');
+
+$editor->setState(new LowerCase());
+
+$editor->type('Fourth line');
+$editor->type('Fifth line');
+
+// Output:
+// First line
+// SECOND LINE
+// THIRD LINE
+// fourth line
+// fifth line
+*/
+class StateTest extends TestCase
+{
+    protected function setUp(): void
+    {
+        parent::setUp();
+        echo 1, "\n";
+    }
+
+    public function test01():void
+    {
+        $editor = new TextEditor(new DefaultText());
+
+        self::assertEquals('First line', $editor->type('First line'));
+
+        $editor->setState(new UpperCase());
+
+        self::assertEquals('SECOND LINE', $editor->type('Second line'));
+        self::assertEquals('THIRD LINE', $editor->type('Third line'));
+
+        $editor->setState(new LowerCase());
+
+        self::assertEquals('fourth line', $editor->type('Fourth line'));
+        self::assertEquals('fifth line', $editor->type('Fifth line'));
+    }
+
+    public function test02():void
+    {
+        $editor = new TextEditor(new DefaultText());
+
+        self::assertEquals('First line', $editor->type('First line'));
+
+        $editor->setState(new UpperCase());
+
+        self::assertEquals('SECOND LINE', $editor->type('Second line'));
+        self::assertEquals('THIRD LINE', $editor->type('Third line'));
+
+        $editor->setState(new LowerCase());
+
+        self::assertEquals('fourth line', $editor->type('Fourth line'));
+        self::assertEquals('fifth line', $editor->type('Fifth line'));
+    }
+
+    protected function tearDown(): void
+    {
+        parent::tearDown();
+        echo 2, "\n";
+    }
+}
diff --git a/examples/php/behavioral/state/TextEditor.php b/examples/php/behavioral/state/TextEditor.php
new file mode 100644
index 00000000..1c839890
--- /dev/null
+++ b/examples/php/behavioral/state/TextEditor.php
@@ -0,0 +1,23 @@
+<?php
+
+namespace design_patterns\behavioral\state;
+
+class TextEditor
+{
+    private WritingState $state;
+
+    public function __construct(WritingState $state)
+    {
+        $this->state = $state;
+    }
+
+    public function setState(WritingState $state): void
+    {
+        $this->state = $state;
+    }
+
+    public function type(string $words): string
+    {
+        return $this->state->write($words);
+    }
+}
diff --git a/examples/php/behavioral/state/UpperCase.php b/examples/php/behavioral/state/UpperCase.php
new file mode 100644
index 00000000..f1a16c23
--- /dev/null
+++ b/examples/php/behavioral/state/UpperCase.php
@@ -0,0 +1,11 @@
+<?php
+
+namespace design_patterns\behavioral\state;
+
+class UpperCase implements WritingState
+{
+    public function write(string $words): string
+    {
+        return strtoupper($words);
+    }
+}
diff --git a/examples/php/behavioral/state/WritingState.php b/examples/php/behavioral/state/WritingState.php
new file mode 100644
index 00000000..f3096ca2
--- /dev/null
+++ b/examples/php/behavioral/state/WritingState.php
@@ -0,0 +1,8 @@
+<?php
+
+namespace design_patterns\behavioral\state;
+
+interface WritingState
+{
+    public function write(string $words): string;
+}
diff --git a/examples/php/behavioral/strategy/BubbleSortStrategy.php b/examples/php/behavioral/strategy/BubbleSortStrategy.php
new file mode 100644
index 00000000..fa259066
--- /dev/null
+++ b/examples/php/behavioral/strategy/BubbleSortStrategy.php
@@ -0,0 +1,12 @@
+<?php
+
+namespace design_patterns\behavioral\strategy;
+
+class BubbleSortStrategy implements SortStrategy
+{
+    public function sort(array $dataset): string
+    {
+        // Do sorting
+        return "Sorting using bubble sort";
+    }
+}
diff --git a/examples/php/behavioral/strategy/QuickSortStrategy.php b/examples/php/behavioral/strategy/QuickSortStrategy.php
new file mode 100644
index 00000000..78f22b24
--- /dev/null
+++ b/examples/php/behavioral/strategy/QuickSortStrategy.php
@@ -0,0 +1,12 @@
+<?php
+
+namespace design_patterns\behavioral\strategy;
+
+class QuickSortStrategy implements SortStrategy
+{
+    public function sort(array $dataset): string
+    {
+        // Do sorting
+        return "Sorting using quick sort";
+    }
+}
diff --git a/examples/php/behavioral/strategy/SortStrategy.php b/examples/php/behavioral/strategy/SortStrategy.php
new file mode 100644
index 00000000..8a2f3168
--- /dev/null
+++ b/examples/php/behavioral/strategy/SortStrategy.php
@@ -0,0 +1,8 @@
+<?php
+
+namespace design_patterns\behavioral\strategy;
+
+interface SortStrategy
+{
+    public function sort(array $dataset): string;
+}
diff --git a/examples/php/behavioral/strategy/Sorter.php b/examples/php/behavioral/strategy/Sorter.php
new file mode 100644
index 00000000..68ad87d9
--- /dev/null
+++ b/examples/php/behavioral/strategy/Sorter.php
@@ -0,0 +1,18 @@
+<?php
+
+namespace design_patterns\behavioral\strategy;
+
+class Sorter
+{
+    private SortStrategy $sorter;
+
+    public function __construct(SortStrategy $sorter)
+    {
+        $this->sorter = $sorter;
+    }
+
+    public function sort(array $dataset): string
+    {
+        return $this->sorter->sort($dataset);
+    }
+}
diff --git a/examples/php/behavioral/strategy/Strategy.png b/examples/php/behavioral/strategy/Strategy.png
new file mode 100644
index 00000000..aa9e89ed
Binary files /dev/null and b/examples/php/behavioral/strategy/Strategy.png differ
diff --git a/examples/php/behavioral/strategy/StrategyTest.php b/examples/php/behavioral/strategy/StrategyTest.php
new file mode 100644
index 00000000..9b36249e
--- /dev/null
+++ b/examples/php/behavioral/strategy/StrategyTest.php
@@ -0,0 +1,29 @@
+<?php
+
+namespace design_patterns\behavioral\strategy;
+
+use PHPUnit\Framework\TestCase;
+
+/*
+$dataset = [1, 5, 4, 3, 2, 8];
+
+$sorter = new Sorter(new BubbleSortStrategy());
+$sorter->sort($dataset); // Output : Sorting using bubble sort
+
+$sorter = new Sorter(new QuickSortStrategy());
+$sorter->sort($dataset); // Output : Sorting using quick sort
+*/
+
+class StrategyTest extends TestCase
+{
+    public function test01(): void
+    {
+        $dataset = [1, 5, 4, 3, 2, 8];
+
+        $sorter = new Sorter(new BubbleSortStrategy());
+        self::assertEquals('Sorting using bubble sort', $sorter->sort($dataset));
+
+        $sorter = new Sorter(new QuickSortStrategy());
+        self::assertEquals('Sorting using quick sort', $sorter->sort($dataset));
+    }
+}
diff --git a/examples/php/behavioral/template_method/AndroidBuilder.php b/examples/php/behavioral/template_method/AndroidBuilder.php
new file mode 100644
index 00000000..5635f481
--- /dev/null
+++ b/examples/php/behavioral/template_method/AndroidBuilder.php
@@ -0,0 +1,26 @@
+<?php
+
+namespace design_patterns\behavioral\template_method;
+
+class AndroidBuilder extends Builder
+{
+    public function test(): string
+    {
+        return 'Running android tests';
+    }
+
+    public function lint(): string
+    {
+        return 'Linting the android code';
+    }
+
+    public function assemble(): string
+    {
+        return 'Assembling the android build';
+    }
+
+    public function deploy(): string
+    {
+        return 'Deploying android build to server';
+    }
+}
diff --git a/examples/php/behavioral/template_method/Builder.php b/examples/php/behavioral/template_method/Builder.php
new file mode 100644
index 00000000..28b0c8ed
--- /dev/null
+++ b/examples/php/behavioral/template_method/Builder.php
@@ -0,0 +1,22 @@
+<?php
+
+namespace design_patterns\behavioral\template_method;
+
+abstract class Builder
+{
+    // Template method
+    final public function build(): string
+    {
+        return sprintf("%s\n%s\n%s\n%s",
+            $this->test(),
+            $this->lint(),
+            $this->assemble(),
+            $this->deploy()
+        );
+    }
+
+    abstract public function test(): string;
+    abstract public function lint(): string;
+    abstract public function assemble(): string;
+    abstract public function deploy(): string;
+}
diff --git a/examples/php/behavioral/template_method/IosBuilder.php b/examples/php/behavioral/template_method/IosBuilder.php
new file mode 100644
index 00000000..f451dfa5
--- /dev/null
+++ b/examples/php/behavioral/template_method/IosBuilder.php
@@ -0,0 +1,26 @@
+<?php
+
+namespace design_patterns\behavioral\template_method;
+
+class IosBuilder extends Builder
+{
+    public function test(): string
+    {
+        return 'Running ios tests';
+    }
+
+    public function lint(): string
+    {
+        return 'Linting the ios code';
+    }
+
+    public function assemble(): string
+    {
+        return 'Assembling the ios build';
+    }
+
+    public function deploy(): string
+    {
+        return 'Deploying ios build to server';
+    }
+}
diff --git a/examples/php/behavioral/template_method/TemplateMethod.png b/examples/php/behavioral/template_method/TemplateMethod.png
new file mode 100644
index 00000000..3b579a36
Binary files /dev/null and b/examples/php/behavioral/template_method/TemplateMethod.png differ
diff --git a/examples/php/behavioral/template_method/TemplateMethodTest.php b/examples/php/behavioral/template_method/TemplateMethodTest.php
new file mode 100644
index 00000000..b72fedbf
--- /dev/null
+++ b/examples/php/behavioral/template_method/TemplateMethodTest.php
@@ -0,0 +1,40 @@
+<?php
+
+namespace design_patterns\behavioral\template_method;
+
+use PHPUnit\Framework\TestCase;
+
+/*
+$androidBuilder = new AndroidBuilder();
+$androidBuilder->build();
+
+// Output:
+// Running android tests
+// Linting the android code
+// Assembling the android build
+// Deploying android build to server
+
+$iosBuilder = new IosBuilder();
+$iosBuilder->build();
+
+// Output:
+// Running ios tests
+// Linting the ios code
+// Assembling the ios build
+// Deploying ios build to server
+*/
+
+class TemplateMethodTest extends TestCase
+{
+    public function test01(): void
+    {
+        $androidBuilder = new AndroidBuilder();
+        self::assertEquals("Running android tests\nLinting the android code\nAssembling the android build\nDeploying android build to server", $androidBuilder->build());
+    }
+
+    public function test02(): void
+    {
+        $iosBuilder = new IosBuilder();
+        self::assertEquals("Running ios tests\nLinting the ios code\nAssembling the ios build\nDeploying ios build to server", $iosBuilder->build());
+    }
+}
diff --git a/examples/php/behavioral/visitor/Animal.php b/examples/php/behavioral/visitor/Animal.php
new file mode 100644
index 00000000..b39383d8
--- /dev/null
+++ b/examples/php/behavioral/visitor/Animal.php
@@ -0,0 +1,8 @@
+<?php
+
+namespace design_patterns\behavioral\visitor;
+
+interface Animal
+{
+    public function accept(AnimalOperation $operation): string;
+}
diff --git a/examples/php/behavioral/visitor/AnimalOperation.php b/examples/php/behavioral/visitor/AnimalOperation.php
new file mode 100644
index 00000000..857f35a8
--- /dev/null
+++ b/examples/php/behavioral/visitor/AnimalOperation.php
@@ -0,0 +1,12 @@
+<?php
+
+namespace design_patterns\behavioral\visitor;
+
+interface AnimalOperation
+{
+    public function visitMonkey(Monkey $monkey): string;
+
+    public function visitLion(Lion $lion): string;
+
+    public function visitDolphin(Dolphin $dolphin): string;
+}
diff --git a/examples/php/behavioral/visitor/Dolphin.php b/examples/php/behavioral/visitor/Dolphin.php
new file mode 100644
index 00000000..c1651128
--- /dev/null
+++ b/examples/php/behavioral/visitor/Dolphin.php
@@ -0,0 +1,16 @@
+<?php
+
+namespace design_patterns\behavioral\visitor;
+
+class Dolphin implements Animal
+{
+    public function speak(): string
+    {
+        return 'Tuut tutt tuutt!';
+    }
+
+    public function accept(AnimalOperation $operation): string
+    {
+        return $operation->visitDolphin($this);
+    }
+}
diff --git a/examples/php/behavioral/visitor/Jump.php b/examples/php/behavioral/visitor/Jump.php
new file mode 100644
index 00000000..39d4e429
--- /dev/null
+++ b/examples/php/behavioral/visitor/Jump.php
@@ -0,0 +1,21 @@
+<?php
+
+namespace design_patterns\behavioral\visitor;
+
+class Jump implements AnimalOperation
+{
+    public function visitMonkey(Monkey $monkey): string
+    {
+        return 'Jumped 20 feet high! on to the tree!';
+    }
+
+    public function visitLion(Lion $lion): string
+    {
+        return 'Jumped 7 feet! Back on the ground!';
+    }
+
+    public function visitDolphin(Dolphin $dolphin): string
+    {
+        return 'Walked on water a little and disappeared';
+    }
+}
diff --git a/examples/php/behavioral/visitor/Lion.php b/examples/php/behavioral/visitor/Lion.php
new file mode 100644
index 00000000..066e511e
--- /dev/null
+++ b/examples/php/behavioral/visitor/Lion.php
@@ -0,0 +1,16 @@
+<?php
+
+namespace design_patterns\behavioral\visitor;
+
+class Lion implements Animal
+{
+    public function roar(): string
+    {
+        return 'Roaaar!';
+    }
+
+    public function accept(AnimalOperation $operation): string
+    {
+        return $operation->visitLion($this);
+    }
+}
diff --git a/examples/php/behavioral/visitor/Monkey.php b/examples/php/behavioral/visitor/Monkey.php
new file mode 100644
index 00000000..bc0fc876
--- /dev/null
+++ b/examples/php/behavioral/visitor/Monkey.php
@@ -0,0 +1,16 @@
+<?php
+
+namespace design_patterns\behavioral\visitor;
+
+class Monkey implements Animal
+{
+    public function shout(): string
+    {
+        return 'Ooh oo aa aa!';
+    }
+
+    public function accept(AnimalOperation $operation): string
+    {
+        return $operation->visitMonkey($this);
+    }
+}
diff --git a/examples/php/behavioral/visitor/Speak.php b/examples/php/behavioral/visitor/Speak.php
new file mode 100644
index 00000000..855a97c1
--- /dev/null
+++ b/examples/php/behavioral/visitor/Speak.php
@@ -0,0 +1,21 @@
+<?php
+
+namespace design_patterns\behavioral\visitor;
+
+class Speak implements AnimalOperation
+{
+    public function visitMonkey(Monkey $monkey): string
+    {
+        return $monkey->shout();
+    }
+
+    public function visitLion(Lion $lion): string
+    {
+        return $lion->roar();
+    }
+
+    public function visitDolphin(Dolphin $dolphin): string
+    {
+        return $dolphin->speak();
+    }
+}
diff --git a/examples/php/behavioral/visitor/Visitor.png b/examples/php/behavioral/visitor/Visitor.png
new file mode 100644
index 00000000..8af614b4
Binary files /dev/null and b/examples/php/behavioral/visitor/Visitor.png differ
diff --git a/examples/php/behavioral/visitor/VisitorTest.php b/examples/php/behavioral/visitor/VisitorTest.php
new file mode 100644
index 00000000..ab46c617
--- /dev/null
+++ b/examples/php/behavioral/visitor/VisitorTest.php
@@ -0,0 +1,55 @@
+<?php
+
+namespace design_patterns\behavioral\visitor;
+
+use PHPUnit\Framework\TestCase;
+
+/*
+$monkey = new Monkey();
+$lion = new Lion();
+$dolphin = new Dolphin();
+
+$speak = new Speak();
+
+$monkey->accept($speak);    // Ooh oo aa aa!
+$lion->accept($speak);      // Roaaar!
+$dolphin->accept($speak);   // Tuut tutt tuutt!
+
+$jump = new Jump();
+
+$monkey->accept($speak);   // Ooh oo aa aa!
+$monkey->accept($jump);    // Jumped 20 feet high! on to the tree!
+
+$lion->accept($speak);     // Roaaar!
+$lion->accept($jump);      // Jumped 7 feet! Back on the ground!
+
+$dolphin->accept($speak);  // Tuut tutt tuutt!
+$dolphin->accept($jump);   // Walked on water a little and disappeared
+*/
+
+class VisitorTest extends TestCase
+{
+    public function test01(): void
+    {
+        $monkey = new Monkey();
+        $lion = new Lion();
+        $dolphin = new Dolphin();
+
+        $speak = new Speak();
+
+        self::assertEquals('Ooh oo aa aa!', $monkey->accept($speak));
+        self::assertEquals('Roaaar!', $lion->accept($speak));
+        self::assertEquals('Tuut tutt tuutt!', $dolphin->accept($speak));
+
+        $jump = new Jump();
+
+        self::assertEquals('Ooh oo aa aa!', $monkey->accept($speak));
+        self::assertEquals('Jumped 20 feet high! on to the tree!', $monkey->accept($jump));
+
+        self::assertEquals('Roaaar!', $lion->accept($speak));
+        self::assertEquals('Jumped 7 feet! Back on the ground!', $lion->accept($jump));
+
+        self::assertEquals('Tuut tutt tuutt!', $dolphin->accept($speak));
+        self::assertEquals('Walked on water a little and disappeared', $dolphin->accept($jump));
+    }
+}
diff --git a/examples/php/composer.json b/examples/php/composer.json
new file mode 100644
index 00000000..a9d2ca51
--- /dev/null
+++ b/examples/php/composer.json
@@ -0,0 +1,16 @@
+{
+    "name": "kamranahmedse/design-patterns-for-humans",
+    "description": "design-patterns-for-humans",
+    "type": "project",
+    "autoload": {
+        "psr-4": {
+            "design_patterns\\": "."
+        }
+    },
+    "require": {
+    },
+    "require-dev": {
+        "phpunit/phpunit": "~9.0",
+        "roave/security-advisories": "dev-latest"
+    }
+}
diff --git a/examples/php/creational/abstract_factory/AbstractFactory.png b/examples/php/creational/abstract_factory/AbstractFactory.png
new file mode 100644
index 00000000..f8b1f397
Binary files /dev/null and b/examples/php/creational/abstract_factory/AbstractFactory.png differ
diff --git a/examples/php/creational/abstract_factory/AbstractFactoryTest.php b/examples/php/creational/abstract_factory/AbstractFactoryTest.php
new file mode 100644
index 00000000..87521878
--- /dev/null
+++ b/examples/php/creational/abstract_factory/AbstractFactoryTest.php
@@ -0,0 +1,53 @@
+<?php
+
+namespace design_patterns\creational\abstract_factory;
+
+use PHPUnit\Framework\TestCase;
+
+/*
+// Wooden factory to return carpenter and wooden door
+
+$woodenFactory = new WoodenDoorFactory();
+
+$door = $woodenFactory->makeDoor();
+$expert = $woodenFactory->makeFittingExpert();
+
+$door->getDescription();  // Output: I am a wooden door
+$expert->getDescription(); // Output: I can only fit wooden doors
+
+// Iron door factory to get iron door and the relevant fitting expert
+
+// Same for Iron Factory
+$ironFactory = new IronDoorFactory();
+
+$door = $ironFactory->makeDoor();
+$expert = $ironFactory->makeFittingExpert();
+
+$door->getDescription();  // Output: I am an iron door
+$expert->getDescription(); // Output: I can only fit iron doors
+*/
+
+class AbstractFactoryTest extends TestCase
+{
+    public function test01(): void
+    {
+        $woodenFactory = new WoodenDoorFactory();
+
+        $door = $woodenFactory->makeDoor();
+        $expert = $woodenFactory->makeFittingExpert();
+
+        self::assertEquals("I am a wooden door", $door->getDescription());
+        self::assertEquals("I can only fit wooden doors", $expert->getDescription());
+    }
+
+    public function test02(): void
+    {
+        $ironFactory = new IronDoorFactory();
+
+        $door = $ironFactory->makeDoor();
+        $expert = $ironFactory->makeFittingExpert();
+
+        self::assertEquals("I am an iron door", $door->getDescription());
+        self::assertEquals("I can only fit iron doors", $expert->getDescription());
+    }
+}
diff --git a/examples/php/creational/abstract_factory/Carpenter.php b/examples/php/creational/abstract_factory/Carpenter.php
new file mode 100644
index 00000000..246fc728
--- /dev/null
+++ b/examples/php/creational/abstract_factory/Carpenter.php
@@ -0,0 +1,11 @@
+<?php
+
+namespace design_patterns\creational\abstract_factory;
+
+class Carpenter implements DoorFittingExpert
+{
+    public function getDescription(): string
+    {
+        return 'I can only fit wooden doors';
+    }
+}
diff --git a/examples/php/creational/abstract_factory/Door.php b/examples/php/creational/abstract_factory/Door.php
new file mode 100644
index 00000000..54d1329d
--- /dev/null
+++ b/examples/php/creational/abstract_factory/Door.php
@@ -0,0 +1,8 @@
+<?php
+
+namespace design_patterns\creational\abstract_factory;
+
+interface Door
+{
+    public function getDescription() : string;
+}
diff --git a/examples/php/creational/abstract_factory/DoorFactory.php b/examples/php/creational/abstract_factory/DoorFactory.php
new file mode 100644
index 00000000..333b7b11
--- /dev/null
+++ b/examples/php/creational/abstract_factory/DoorFactory.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace design_patterns\creational\abstract_factory;
+
+interface DoorFactory
+{
+    public function makeDoor(): Door;
+
+    public function makeFittingExpert(): DoorFittingExpert;
+}
diff --git a/examples/php/creational/abstract_factory/DoorFittingExpert.php b/examples/php/creational/abstract_factory/DoorFittingExpert.php
new file mode 100644
index 00000000..d84a6ca6
--- /dev/null
+++ b/examples/php/creational/abstract_factory/DoorFittingExpert.php
@@ -0,0 +1,8 @@
+<?php
+
+namespace design_patterns\creational\abstract_factory;
+
+interface DoorFittingExpert
+{
+    public function getDescription(): string;
+}
diff --git a/examples/php/creational/abstract_factory/IronDoor.php b/examples/php/creational/abstract_factory/IronDoor.php
new file mode 100644
index 00000000..dc41dc86
--- /dev/null
+++ b/examples/php/creational/abstract_factory/IronDoor.php
@@ -0,0 +1,11 @@
+<?php
+
+namespace design_patterns\creational\abstract_factory;
+
+class IronDoor implements Door
+{
+    public function getDescription(): string
+    {
+        return 'I am an iron door';
+    }
+}
diff --git a/examples/php/creational/abstract_factory/IronDoorFactory.php b/examples/php/creational/abstract_factory/IronDoorFactory.php
new file mode 100644
index 00000000..d4963ea9
--- /dev/null
+++ b/examples/php/creational/abstract_factory/IronDoorFactory.php
@@ -0,0 +1,16 @@
+<?php
+
+namespace design_patterns\creational\abstract_factory;
+
+class IronDoorFactory implements DoorFactory
+{
+    public function makeDoor(): Door
+    {
+        return new IronDoor();
+    }
+
+    public function makeFittingExpert(): DoorFittingExpert
+    {
+        return new Welder();
+    }
+}
diff --git a/examples/php/creational/abstract_factory/Welder.php b/examples/php/creational/abstract_factory/Welder.php
new file mode 100644
index 00000000..79abf35d
--- /dev/null
+++ b/examples/php/creational/abstract_factory/Welder.php
@@ -0,0 +1,11 @@
+<?php
+
+namespace design_patterns\creational\abstract_factory;
+
+class Welder implements DoorFittingExpert
+{
+    public function getDescription(): string
+    {
+        return 'I can only fit iron doors';
+    }
+}
diff --git a/examples/php/creational/abstract_factory/WoodenDoor.php b/examples/php/creational/abstract_factory/WoodenDoor.php
new file mode 100644
index 00000000..65c6facf
--- /dev/null
+++ b/examples/php/creational/abstract_factory/WoodenDoor.php
@@ -0,0 +1,11 @@
+<?php
+
+namespace design_patterns\creational\abstract_factory;
+
+class WoodenDoor implements Door
+{
+    public function getDescription(): string
+    {
+        return 'I am a wooden door';
+    }
+}
diff --git a/examples/php/creational/abstract_factory/WoodenDoorFactory.php b/examples/php/creational/abstract_factory/WoodenDoorFactory.php
new file mode 100644
index 00000000..8c96d85a
--- /dev/null
+++ b/examples/php/creational/abstract_factory/WoodenDoorFactory.php
@@ -0,0 +1,16 @@
+<?php
+
+namespace design_patterns\creational\abstract_factory;
+
+class WoodenDoorFactory implements DoorFactory
+{
+    public function makeDoor(): Door
+    {
+        return new WoodenDoor();
+    }
+
+    public function makeFittingExpert(): DoorFittingExpert
+    {
+        return new Carpenter();
+    }
+}
diff --git a/examples/php/creational/builder/Builder.php b/examples/php/creational/builder/Builder.php
new file mode 100644
index 00000000..8357882f
--- /dev/null
+++ b/examples/php/creational/builder/Builder.php
@@ -0,0 +1,22 @@
+<?php
+
+namespace design_patterns\creational\builder;
+
+class Builder
+{
+    public int $size;
+
+    public bool $cheese = false;
+    public bool $pepperoni = false;
+    public bool $lettuce = false;
+    public bool $tomato = false;
+
+    public function __construct(BurgerBuilder $builder)
+    {
+        $this->size = $builder->size;
+        $this->cheese = $builder->cheese;
+        $this->pepperoni = $builder->pepperoni;
+        $this->lettuce = $builder->lettuce;
+        $this->tomato = $builder->tomato;
+    }
+}
diff --git a/examples/php/creational/builder/Builder.png b/examples/php/creational/builder/Builder.png
new file mode 100644
index 00000000..525b5923
Binary files /dev/null and b/examples/php/creational/builder/Builder.png differ
diff --git a/examples/php/creational/builder/BuilderTest.php b/examples/php/creational/builder/BuilderTest.php
new file mode 100644
index 00000000..4e20f237
--- /dev/null
+++ b/examples/php/creational/builder/BuilderTest.php
@@ -0,0 +1,23 @@
+<?php
+
+namespace design_patterns\creational\builder;
+
+use PHPUnit\Framework\TestCase;
+
+class BuilderTest extends TestCase
+{
+    public function test01(): void
+    {
+        $burger = (new BurgerBuilder(14))
+            ->addPepperoni()
+            ->addLettuce()
+            ->addTomato()
+            ->build();
+
+        self::assertEquals(14, $burger->size);
+        self::assertFalse($burger->cheese);
+        self::assertTrue($burger->pepperoni);
+        self::assertTrue($burger->lettuce);
+        self::assertTrue($burger->tomato);
+    }
+}
diff --git a/examples/php/creational/builder/BurgerBuilder.php b/examples/php/creational/builder/BurgerBuilder.php
new file mode 100644
index 00000000..14574347
--- /dev/null
+++ b/examples/php/creational/builder/BurgerBuilder.php
@@ -0,0 +1,47 @@
+<?php
+
+namespace design_patterns\creational\builder;
+
+class BurgerBuilder
+{
+    public int $size;
+
+    public bool $cheese = false;
+    public bool $pepperoni = false;
+    public bool $lettuce = false;
+    public bool $tomato = false;
+
+    public function __construct(int $size)
+    {
+        $this->size = $size;
+    }
+
+    public function addPepperoni(): BurgerBuilder
+    {
+        $this->pepperoni = true;
+        return $this;
+    }
+
+    public function addLettuce(): BurgerBuilder
+    {
+        $this->lettuce = true;
+        return $this;
+    }
+
+    public function addCheese(): BurgerBuilder
+    {
+        $this->cheese = true;
+        return $this;
+    }
+
+    public function addTomato(): BurgerBuilder
+    {
+        $this->tomato = true;
+        return $this;
+    }
+
+    public function build(): Builder
+    {
+        return new Builder($this);
+    }
+}
diff --git a/examples/php/creational/factory_method/CommunityExecutive.php b/examples/php/creational/factory_method/CommunityExecutive.php
new file mode 100644
index 00000000..2c127300
--- /dev/null
+++ b/examples/php/creational/factory_method/CommunityExecutive.php
@@ -0,0 +1,11 @@
+<?php
+
+namespace design_patterns\creational\factory_method;
+
+class CommunityExecutive implements Interviewer
+{
+    public function askQuestions(): string
+    {
+        return 'Asking about community building.';
+    }
+}
diff --git a/examples/php/creational/factory_method/Developer.php b/examples/php/creational/factory_method/Developer.php
new file mode 100644
index 00000000..0498cecd
--- /dev/null
+++ b/examples/php/creational/factory_method/Developer.php
@@ -0,0 +1,11 @@
+<?php
+
+namespace design_patterns\creational\factory_method;
+
+class Developer implements Interviewer
+{
+    public function askQuestions(): string
+    {
+        return 'Asking about design patterns.';
+    }
+}
diff --git a/examples/php/creational/factory_method/DevelopmentManager.php b/examples/php/creational/factory_method/DevelopmentManager.php
new file mode 100644
index 00000000..77c42811
--- /dev/null
+++ b/examples/php/creational/factory_method/DevelopmentManager.php
@@ -0,0 +1,11 @@
+<?php
+
+namespace design_patterns\creational\factory_method;
+
+class DevelopmentManager extends HiringManager
+{
+    protected function makeInterviewer(): Interviewer
+    {
+        return new Developer();
+    }
+}
diff --git a/examples/php/creational/factory_method/FactoryMethod.png b/examples/php/creational/factory_method/FactoryMethod.png
new file mode 100644
index 00000000..56b7371c
Binary files /dev/null and b/examples/php/creational/factory_method/FactoryMethod.png differ
diff --git a/examples/php/creational/factory_method/FactoryMethodTest.php b/examples/php/creational/factory_method/FactoryMethodTest.php
new file mode 100644
index 00000000..927ef551
--- /dev/null
+++ b/examples/php/creational/factory_method/FactoryMethodTest.php
@@ -0,0 +1,25 @@
+<?php
+
+namespace design_patterns\creational\factory_method;
+
+use PHPUnit\Framework\TestCase;
+
+/*
+$devManager = new DevelopmentManager();
+$devManager->takeInterview(); // Output: Asking about design patterns.
+
+$marketingManager = new MarketingManager();
+$marketingManager->takeInterview(); // Output: Asking about community building.
+*/
+
+class FactoryMethodTest extends TestCase
+{
+    public function test01(): void
+    {
+        $devManager = new DevelopmentManager();
+        self::assertEquals('Asking about design patterns.', $devManager->takeInterview());
+
+        $marketingManager = new MarketingManager();
+        self::assertEquals('Asking about community building.', $marketingManager->takeInterview());
+    }
+}
diff --git a/examples/php/creational/factory_method/HiringManager.php b/examples/php/creational/factory_method/HiringManager.php
new file mode 100644
index 00000000..fa93065f
--- /dev/null
+++ b/examples/php/creational/factory_method/HiringManager.php
@@ -0,0 +1,14 @@
+<?php
+
+namespace design_patterns\creational\factory_method;
+
+abstract class HiringManager
+{
+    // Factory method
+    abstract protected function makeInterviewer(): Interviewer;
+
+    public function takeInterview(): string
+    {
+        return $this->makeInterviewer()->askQuestions();
+    }
+}
diff --git a/examples/php/creational/factory_method/Interviewer.php b/examples/php/creational/factory_method/Interviewer.php
new file mode 100644
index 00000000..7ec993a1
--- /dev/null
+++ b/examples/php/creational/factory_method/Interviewer.php
@@ -0,0 +1,8 @@
+<?php
+
+namespace design_patterns\creational\factory_method;
+
+interface Interviewer
+{
+    public function askQuestions(): string;
+}
diff --git a/examples/php/creational/factory_method/MarketingManager.php b/examples/php/creational/factory_method/MarketingManager.php
new file mode 100644
index 00000000..673409f0
--- /dev/null
+++ b/examples/php/creational/factory_method/MarketingManager.php
@@ -0,0 +1,11 @@
+<?php
+
+namespace design_patterns\creational\factory_method;
+
+class MarketingManager extends HiringManager
+{
+    protected function makeInterviewer(): Interviewer
+    {
+        return new CommunityExecutive();
+    }
+}
diff --git a/examples/php/creational/prototype/Prototype.png b/examples/php/creational/prototype/Prototype.png
new file mode 100644
index 00000000..8a4bc6c5
Binary files /dev/null and b/examples/php/creational/prototype/Prototype.png differ
diff --git a/examples/php/creational/prototype/PrototypeTest.php b/examples/php/creational/prototype/PrototypeTest.php
new file mode 100644
index 00000000..6890a06e
--- /dev/null
+++ b/examples/php/creational/prototype/PrototypeTest.php
@@ -0,0 +1,33 @@
+<?php
+
+namespace design_patterns\creational\prototype;
+
+use PHPUnit\Framework\TestCase;
+
+/*
+$original = new Sheep('Jolly');
+echo $original->getName(); // Jolly
+echo $original->getCategory(); // Mountain Sheep
+
+// Clone and modify what is required
+$cloned = clone $original;
+$cloned->setName('Dolly');
+echo $cloned->getName(); // Dolly
+echo $cloned->getCategory(); // Mountain sheep
+*/
+
+class PrototypeTest extends TestCase
+{
+    public function test01(): void
+    {
+        $original = new Sheep('Jolly');
+        self::assertEquals('Jolly', $original->getName());
+        self::assertEquals('Mountain Sheep', $original->getCategory());
+
+        // Clone and modify what is required
+        $cloned = clone $original;
+        $cloned->setName('Dolly');
+        self::assertEquals('Dolly', $cloned->getName());
+        self::assertEquals('Mountain Sheep', $cloned->getCategory());
+    }
+}
diff --git a/examples/php/creational/prototype/Sheep.php b/examples/php/creational/prototype/Sheep.php
new file mode 100644
index 00000000..1a353f23
--- /dev/null
+++ b/examples/php/creational/prototype/Sheep.php
@@ -0,0 +1,35 @@
+<?php
+
+namespace design_patterns\creational\prototype;
+
+class Sheep
+{
+    private string $name;
+    private string $category;
+
+    public function __construct(string $name, string $category = 'Mountain Sheep')
+    {
+        $this->name = $name;
+        $this->category = $category;
+    }
+
+    public function setName(string $name): void
+    {
+        $this->name = $name;
+    }
+
+    public function getName(): string
+    {
+        return $this->name;
+    }
+
+    public function setCategory(string $category): void
+    {
+        $this->category = $category;
+    }
+
+    public function getCategory(): string
+    {
+        return $this->category;
+    }
+}
diff --git a/examples/php/creational/simple_factory/Door.php b/examples/php/creational/simple_factory/Door.php
new file mode 100644
index 00000000..b019be4c
--- /dev/null
+++ b/examples/php/creational/simple_factory/Door.php
@@ -0,0 +1,9 @@
+<?php
+
+namespace design_patterns\creational\simple_factory;
+
+interface Door
+{
+    public function getWidth(): float;
+    public function getHeight(): float;
+}
diff --git a/examples/php/creational/simple_factory/DoorFactory.php b/examples/php/creational/simple_factory/DoorFactory.php
new file mode 100644
index 00000000..d1e89b1d
--- /dev/null
+++ b/examples/php/creational/simple_factory/DoorFactory.php
@@ -0,0 +1,11 @@
+<?php
+
+namespace design_patterns\creational\simple_factory;
+
+class DoorFactory
+{
+    public static function makeDoor(float $width, float $height): Door
+    {
+        return new WoodenDoor($width, $height);
+    }
+}
diff --git a/examples/php/creational/simple_factory/SimpleFactory.png b/examples/php/creational/simple_factory/SimpleFactory.png
new file mode 100644
index 00000000..6c44270f
Binary files /dev/null and b/examples/php/creational/simple_factory/SimpleFactory.png differ
diff --git a/examples/php/creational/simple_factory/SimpleFactoryTest.php b/examples/php/creational/simple_factory/SimpleFactoryTest.php
new file mode 100644
index 00000000..7eb573c5
--- /dev/null
+++ b/examples/php/creational/simple_factory/SimpleFactoryTest.php
@@ -0,0 +1,32 @@
+<?php
+
+namespace design_patterns\creational\simple_factory;
+
+use PHPUnit\Framework\TestCase;
+
+//
+//// Make me a door of 100x200
+//$door = DoorFactory::makeDoor(100, 200);
+//
+//echo 'Width: ' . $door->getWidth();
+//echo 'Height: ' . $door->getHeight();
+//
+//// Make me a door of 50x100
+//$door2 = DoorFactory::makeDoor(50, 100);
+
+class SimpleFactoryTest extends TestCase
+{
+    public function test01(): void
+    {
+        $door = DoorFactory::makeDoor(100, 200);
+        self::assertEquals(100, $door->getWidth());
+        self::assertEquals(200, $door->getHeight());
+    }
+
+    public function test02(): void
+    {
+        $door2 = DoorFactory::makeDoor(50, 100);
+        self::assertEquals(50, $door2->getWidth());
+        self::assertEquals(100, $door2->getHeight());
+    }
+}
diff --git a/examples/php/creational/simple_factory/WoodenDoor.php b/examples/php/creational/simple_factory/WoodenDoor.php
new file mode 100644
index 00000000..abc64c85
--- /dev/null
+++ b/examples/php/creational/simple_factory/WoodenDoor.php
@@ -0,0 +1,25 @@
+<?php
+
+namespace design_patterns\creational\simple_factory;
+
+class WoodenDoor implements Door
+{
+    private float $width;
+    private float $height;
+
+    public function __construct(float $width, float $height)
+    {
+        $this->width = $width;
+        $this->height = $height;
+    }
+
+    public function getWidth(): float
+    {
+        return $this->width;
+    }
+
+    public function getHeight(): float
+    {
+        return $this->height;
+    }
+}
diff --git a/examples/php/creational/singleton/President.php b/examples/php/creational/singleton/President.php
new file mode 100644
index 00000000..63eafff3
--- /dev/null
+++ b/examples/php/creational/singleton/President.php
@@ -0,0 +1,32 @@
+<?php
+
+namespace design_patterns\creational\singleton;
+
+final class President
+{
+    private static ?President $instance = null;
+
+    private function __construct()
+    {
+        // Hide the constructor
+    }
+
+    public static function getInstance(): President
+    {
+        if (!self::$instance) {
+            self::$instance = new self();
+        }
+
+        return self::$instance;
+    }
+
+    private function __clone()
+    {
+        // Disable cloning
+    }
+
+    private function __wakeup()
+    {
+        // Disable unserialize
+    }
+}
diff --git a/examples/php/creational/singleton/Singleton.png b/examples/php/creational/singleton/Singleton.png
new file mode 100644
index 00000000..6cd8db1a
Binary files /dev/null and b/examples/php/creational/singleton/Singleton.png differ
diff --git a/examples/php/creational/singleton/SingletonTest.php b/examples/php/creational/singleton/SingletonTest.php
new file mode 100644
index 00000000..cb57d5dc
--- /dev/null
+++ b/examples/php/creational/singleton/SingletonTest.php
@@ -0,0 +1,23 @@
+<?php
+
+namespace design_patterns\creational\singleton;
+
+use PHPUnit\Framework\TestCase;
+
+/*
+$president1 = President::getInstance();
+$president2 = President::getInstance();
+
+var_dump($president1 === $president2); // true
+*/
+
+class SingletonTest extends TestCase
+{
+    public function test01(): void
+    {
+        $president1 = President::getInstance();
+        $president2 = President::getInstance();
+
+        self::assertEquals($president1, $president2);
+    }
+}
diff --git a/examples/php/structural/adapter/Adapter.png b/examples/php/structural/adapter/Adapter.png
new file mode 100644
index 00000000..2600d715
Binary files /dev/null and b/examples/php/structural/adapter/Adapter.png differ
diff --git a/examples/php/structural/adapter/AdapterTest.php b/examples/php/structural/adapter/AdapterTest.php
new file mode 100644
index 00000000..56bc8652
--- /dev/null
+++ b/examples/php/structural/adapter/AdapterTest.php
@@ -0,0 +1,26 @@
+<?php
+
+namespace design_patterns\structural\adapter;
+
+use PHPUnit\Framework\TestCase;
+
+/*
+$wildDog = new WildDog();
+$wildDogAdapter = new WildDogAdapter($wildDog);
+
+$hunter = new Hunter();
+$hunter->hunt($wildDogAdapter);
+*/
+
+class AdapterTest extends TestCase
+{
+    public function test01(): void
+    {
+        $wildDog = new WildDog();
+        $wildDogAdapter = new WildDogAdapter($wildDog);
+
+        $hunter = new Hunter();
+
+        self::assertEquals("WildDog: Bark!", $hunter->hunt($wildDogAdapter));
+    }
+}
diff --git a/examples/php/structural/adapter/AfricanLion.php b/examples/php/structural/adapter/AfricanLion.php
new file mode 100644
index 00000000..8238653b
--- /dev/null
+++ b/examples/php/structural/adapter/AfricanLion.php
@@ -0,0 +1,11 @@
+<?php
+
+namespace design_patterns\structural\adapter;
+
+class AfricanLion implements Lion
+{
+    public function roar(): string
+    {
+        return 'African Lion: Roar!';
+    }
+}
diff --git a/examples/php/structural/adapter/AsianLion.php b/examples/php/structural/adapter/AsianLion.php
new file mode 100644
index 00000000..bfe0454d
--- /dev/null
+++ b/examples/php/structural/adapter/AsianLion.php
@@ -0,0 +1,11 @@
+<?php
+
+namespace design_patterns\structural\adapter;
+
+class AsianLion implements Lion
+{
+    public function roar(): string
+    {
+        return 'Asian Lion: Roar!';
+    }
+}
diff --git a/examples/php/structural/adapter/Hunter.php b/examples/php/structural/adapter/Hunter.php
new file mode 100644
index 00000000..5bab5ae9
--- /dev/null
+++ b/examples/php/structural/adapter/Hunter.php
@@ -0,0 +1,11 @@
+<?php
+
+namespace design_patterns\structural\adapter;
+
+class Hunter
+{
+    public function hunt(Lion $lion): string
+    {
+        return $lion->roar();
+    }
+}
diff --git a/examples/php/structural/adapter/Lion.php b/examples/php/structural/adapter/Lion.php
new file mode 100644
index 00000000..481ae868
--- /dev/null
+++ b/examples/php/structural/adapter/Lion.php
@@ -0,0 +1,8 @@
+<?php
+
+namespace design_patterns\structural\adapter;
+
+interface Lion
+{
+    public function roar(): string;
+}
diff --git a/examples/php/structural/adapter/WildDog.php b/examples/php/structural/adapter/WildDog.php
new file mode 100644
index 00000000..eb1ed0c2
--- /dev/null
+++ b/examples/php/structural/adapter/WildDog.php
@@ -0,0 +1,11 @@
+<?php
+
+namespace design_patterns\structural\adapter;
+
+class WildDog
+{
+    public function bark(): string
+    {
+        return 'WildDog: Bark!';
+    }
+}
diff --git a/examples/php/structural/adapter/WildDogAdapter.php b/examples/php/structural/adapter/WildDogAdapter.php
new file mode 100644
index 00000000..9e7c0f2a
--- /dev/null
+++ b/examples/php/structural/adapter/WildDogAdapter.php
@@ -0,0 +1,18 @@
+<?php
+
+namespace design_patterns\structural\adapter;
+
+class WildDogAdapter implements Lion
+{
+    private WildDog $dog;
+
+    public function __construct(WildDog $dog)
+    {
+        $this->dog = $dog;
+    }
+
+    public function roar(): string
+    {
+        return $this->dog->bark();
+    }
+}
diff --git a/examples/php/structural/bridge/About.php b/examples/php/structural/bridge/About.php
new file mode 100644
index 00000000..60100286
--- /dev/null
+++ b/examples/php/structural/bridge/About.php
@@ -0,0 +1,18 @@
+<?php
+
+namespace design_patterns\structural\bridge;
+
+class About implements WebPage
+{
+    private Theme $theme;
+
+    public function __construct(Theme $theme)
+    {
+        $this->theme = $theme;
+    }
+
+    public function getContent(): string
+    {
+        return "About page in " . $this->theme->getColor();
+    }
+}
diff --git a/examples/php/structural/bridge/AquaTheme.php b/examples/php/structural/bridge/AquaTheme.php
new file mode 100644
index 00000000..50ff04c0
--- /dev/null
+++ b/examples/php/structural/bridge/AquaTheme.php
@@ -0,0 +1,11 @@
+<?php
+
+namespace design_patterns\structural\bridge;
+
+class AquaTheme implements Theme
+{
+    public function getColor(): string
+    {
+        return 'Light blue';
+    }
+}
diff --git a/examples/php/structural/bridge/Bridge.png b/examples/php/structural/bridge/Bridge.png
new file mode 100644
index 00000000..fd0f4d12
Binary files /dev/null and b/examples/php/structural/bridge/Bridge.png differ
diff --git a/examples/php/structural/bridge/BridgeTest.php b/examples/php/structural/bridge/BridgeTest.php
new file mode 100644
index 00000000..3b2b7653
--- /dev/null
+++ b/examples/php/structural/bridge/BridgeTest.php
@@ -0,0 +1,40 @@
+<?php
+
+namespace design_patterns\structural\bridge;
+
+use PHPUnit\Framework\TestCase;
+
+/*
+$darkTheme = new DarkTheme();
+
+$about = new About($darkTheme);
+$careers = new Careers($darkTheme);
+
+echo $about->getContent(); // "About page in Dark Black";
+echo $careers->getContent(); // "Careers page in Dark Black";
+*/
+
+class BridgeTest extends TestCase
+{
+    public function test01(): void
+    {
+        $darkTheme = new DarkTheme();
+
+        $about = new About($darkTheme);
+        $careers = new Careers($darkTheme);
+
+        $this->assertEquals('About page in Dark Black', $about->getContent());
+        $this->assertEquals('Careers page in Dark Black', $careers->getContent());
+    }
+
+    public function test02(): void
+    {
+        $lightTheme = new LightTheme();
+
+        $about = new About($lightTheme);
+        $careers = new Careers($lightTheme);
+
+        $this->assertEquals('About page in Off White', $about->getContent());
+        $this->assertEquals('Careers page in Off White', $careers->getContent());
+    }
+}
diff --git a/examples/php/structural/bridge/Careers.php b/examples/php/structural/bridge/Careers.php
new file mode 100644
index 00000000..3aa94071
--- /dev/null
+++ b/examples/php/structural/bridge/Careers.php
@@ -0,0 +1,18 @@
+<?php
+
+namespace design_patterns\structural\bridge;
+
+class Careers implements WebPage
+{
+    private Theme $theme;
+
+    public function __construct(Theme $theme)
+    {
+        $this->theme = $theme;
+    }
+
+    public function getContent(): string
+    {
+        return "Careers page in " . $this->theme->getColor();
+    }
+}
diff --git a/examples/php/structural/bridge/DarkTheme.php b/examples/php/structural/bridge/DarkTheme.php
new file mode 100644
index 00000000..2bfb0287
--- /dev/null
+++ b/examples/php/structural/bridge/DarkTheme.php
@@ -0,0 +1,11 @@
+<?php
+
+namespace design_patterns\structural\bridge;
+
+class DarkTheme implements Theme
+{
+    public function getColor(): string
+    {
+        return 'Dark Black';
+    }
+}
diff --git a/examples/php/structural/bridge/LightTheme.php b/examples/php/structural/bridge/LightTheme.php
new file mode 100644
index 00000000..7518d276
--- /dev/null
+++ b/examples/php/structural/bridge/LightTheme.php
@@ -0,0 +1,11 @@
+<?php
+
+namespace design_patterns\structural\bridge;
+
+class LightTheme implements Theme
+{
+    public function getColor(): string
+    {
+        return 'Off White';
+    }
+}
diff --git a/examples/php/structural/bridge/Theme.php b/examples/php/structural/bridge/Theme.php
new file mode 100644
index 00000000..f3c34a1e
--- /dev/null
+++ b/examples/php/structural/bridge/Theme.php
@@ -0,0 +1,8 @@
+<?php
+
+namespace design_patterns\structural\bridge;
+
+interface Theme
+{
+    public function getColor(): string;
+}
diff --git a/examples/php/structural/bridge/WebPage.php b/examples/php/structural/bridge/WebPage.php
new file mode 100644
index 00000000..c61144ae
--- /dev/null
+++ b/examples/php/structural/bridge/WebPage.php
@@ -0,0 +1,9 @@
+<?php
+
+namespace design_patterns\structural\bridge;
+
+interface WebPage
+{
+    public function __construct(Theme $theme);
+    public function getContent(): string;
+}
diff --git a/examples/php/structural/composite/Composite.png b/examples/php/structural/composite/Composite.png
new file mode 100644
index 00000000..4b9cae68
Binary files /dev/null and b/examples/php/structural/composite/Composite.png differ
diff --git a/examples/php/structural/composite/CompositeTest.php b/examples/php/structural/composite/CompositeTest.php
new file mode 100644
index 00000000..03c3b0e7
--- /dev/null
+++ b/examples/php/structural/composite/CompositeTest.php
@@ -0,0 +1,34 @@
+<?php
+
+namespace design_patterns\structural\composite;
+
+use PHPUnit\Framework\TestCase;
+
+
+/*
+// Prepare the employees
+$john = new Developer('John Doe', 12000);
+$jane = new Designer('Jane Doe', 15000);
+
+// Add them to organization
+$organization = new Organization();
+$organization->addEmployee($john);
+$organization->addEmployee($jane);
+
+echo "Net salaries: " . $organization->getNetSalaries(); // Net Salaries: 27000
+*/
+
+class CompositeTest extends TestCase
+{
+    public function test01(): void
+    {
+        $john = new Developer('John Doe', 12000);
+        $jane = new Designer('Jane Doe', 15000);
+
+        $organization = new Organization();
+        $organization->addEmployee($john);
+        $organization->addEmployee($jane);
+
+        self::assertEquals(27000, $organization->getNetSalaries());
+    }
+}
diff --git a/examples/php/structural/composite/Designer.php b/examples/php/structural/composite/Designer.php
new file mode 100644
index 00000000..465c8d2c
--- /dev/null
+++ b/examples/php/structural/composite/Designer.php
@@ -0,0 +1,36 @@
+<?php
+
+namespace design_patterns\structural\composite;
+
+class Designer implements Employee
+{
+    private float $salary;
+    private string $name;
+    private array $roles;
+
+    public function __construct(string $name, float $salary)
+    {
+        $this->name = $name;
+        $this->salary = $salary;
+    }
+
+    public function getName(): string
+    {
+        return $this->name;
+    }
+
+    public function setSalary(float $salary): void
+    {
+        $this->salary = $salary;
+    }
+
+    public function getSalary(): float
+    {
+        return $this->salary;
+    }
+
+    public function getRoles(): array
+    {
+        return $this->roles;
+    }
+}
diff --git a/examples/php/structural/composite/Developer.php b/examples/php/structural/composite/Developer.php
new file mode 100644
index 00000000..faabac83
--- /dev/null
+++ b/examples/php/structural/composite/Developer.php
@@ -0,0 +1,36 @@
+<?php
+
+namespace design_patterns\structural\composite;
+
+class Developer implements Employee
+{
+    private float $salary;
+    private string $name;
+    private array $roles;
+
+    public function __construct(string $name, float $salary)
+    {
+        $this->name = $name;
+        $this->salary = $salary;
+    }
+
+    public function getName(): string
+    {
+        return $this->name;
+    }
+
+    public function setSalary(float $salary): void
+    {
+        $this->salary = $salary;
+    }
+
+    public function getSalary(): float
+    {
+        return $this->salary;
+    }
+
+    public function getRoles(): array
+    {
+        return $this->roles;
+    }
+}
diff --git a/examples/php/structural/composite/Employee.php b/examples/php/structural/composite/Employee.php
new file mode 100644
index 00000000..adba3d71
--- /dev/null
+++ b/examples/php/structural/composite/Employee.php
@@ -0,0 +1,12 @@
+<?php
+
+namespace design_patterns\structural\composite;
+
+interface Employee
+{
+    public function __construct(string $name, float $salary);
+    public function getName(): string;
+    public function setSalary(float $salary): void;
+    public function getSalary(): float;
+    public function getRoles(): array;
+}
diff --git a/examples/php/structural/composite/Organization.php b/examples/php/structural/composite/Organization.php
new file mode 100644
index 00000000..6791d37b
--- /dev/null
+++ b/examples/php/structural/composite/Organization.php
@@ -0,0 +1,24 @@
+<?php
+
+namespace design_patterns\structural\composite;
+
+class Organization
+{
+    private array $employees;
+
+    public function addEmployee(Employee $employee): void
+    {
+        $this->employees[] = $employee;
+    }
+
+    public function getNetSalaries(): float
+    {
+        $netSalary = 0;
+
+        foreach ($this->employees as $employee) {
+            $netSalary += $employee->getSalary();
+        }
+
+        return $netSalary;
+    }
+}
diff --git a/examples/php/structural/decorator/Coffee.php b/examples/php/structural/decorator/Coffee.php
new file mode 100644
index 00000000..6a6fceba
--- /dev/null
+++ b/examples/php/structural/decorator/Coffee.php
@@ -0,0 +1,9 @@
+<?php
+
+namespace design_patterns\structural\decorator;
+
+interface Coffee
+{
+    public function getCost(): float;
+    public function getDescription(): string;
+}
diff --git a/examples/php/structural/decorator/Decorator.png b/examples/php/structural/decorator/Decorator.png
new file mode 100644
index 00000000..86691b4d
Binary files /dev/null and b/examples/php/structural/decorator/Decorator.png differ
diff --git a/examples/php/structural/decorator/DecoratorTest.php b/examples/php/structural/decorator/DecoratorTest.php
new file mode 100644
index 00000000..da920f40
--- /dev/null
+++ b/examples/php/structural/decorator/DecoratorTest.php
@@ -0,0 +1,45 @@
+<?php
+
+namespace design_patterns\structural\decorator;
+
+use PHPUnit\Framework\TestCase;
+
+/*
+$someCoffee = new SimpleCoffee();
+echo $someCoffee->getCost(); // 10
+echo $someCoffee->getDescription(); // Simple Coffee
+
+$someCoffee = new MilkCoffee($someCoffee);
+echo $someCoffee->getCost(); // 12
+echo $someCoffee->getDescription(); // Simple Coffee, milk
+
+$someCoffee = new WhipCoffee($someCoffee);
+echo $someCoffee->getCost(); // 17
+echo $someCoffee->getDescription(); // Simple Coffee, milk, whip
+
+$someCoffee = new VanillaCoffee($someCoffee);
+echo $someCoffee->getCost(); // 20
+echo $someCoffee->getDescription(); // Simple Coffee, milk, whip, vanilla
+*/
+
+class DecoratorTest extends TestCase
+{
+    public function test01(): void
+    {
+        $someCoffee = new SimpleCoffee();
+        self::assertEquals(10, $someCoffee->getCost());
+        self::assertEquals('Simple Coffee', $someCoffee->getDescription());
+
+        $someCoffee = new MilkCoffee($someCoffee);
+        self::assertEquals(12, $someCoffee->getCost());
+        self::assertEquals('Simple Coffee, milk', $someCoffee->getDescription());
+
+        $someCoffee = new WhipCoffee($someCoffee);
+        self::assertEquals(17, $someCoffee->getCost());
+        self::assertEquals('Simple Coffee, milk, whip', $someCoffee->getDescription());
+
+        $someCoffee = new VanillaCoffee($someCoffee);
+        self::assertEquals(20, $someCoffee->getCost());
+        self::assertEquals('Simple Coffee, milk, whip, vanilla', $someCoffee->getDescription());
+    }
+}
diff --git a/examples/php/structural/decorator/MilkCoffee.php b/examples/php/structural/decorator/MilkCoffee.php
new file mode 100644
index 00000000..66a0c2b2
--- /dev/null
+++ b/examples/php/structural/decorator/MilkCoffee.php
@@ -0,0 +1,23 @@
+<?php
+
+namespace design_patterns\structural\decorator;
+
+class MilkCoffee implements Coffee
+{
+    private Coffee $coffee;
+
+    public function __construct(Coffee $coffee)
+    {
+        $this->coffee = $coffee;
+    }
+
+    public function getCost(): float
+    {
+        return $this->coffee->getCost() + 2;
+    }
+
+    public function getDescription(): string
+    {
+        return $this->coffee->getDescription() . ', milk';
+    }
+}
diff --git a/examples/php/structural/decorator/SimpleCoffee.php b/examples/php/structural/decorator/SimpleCoffee.php
new file mode 100644
index 00000000..09e56cd6
--- /dev/null
+++ b/examples/php/structural/decorator/SimpleCoffee.php
@@ -0,0 +1,16 @@
+<?php
+
+namespace design_patterns\structural\decorator;
+
+class SimpleCoffee implements Coffee
+{
+    public function getCost(): float
+    {
+        return 10;
+    }
+
+    public function getDescription(): string
+    {
+        return 'Simple Coffee';
+    }
+}
diff --git a/examples/php/structural/decorator/VanillaCoffee.php b/examples/php/structural/decorator/VanillaCoffee.php
new file mode 100644
index 00000000..8ecf6724
--- /dev/null
+++ b/examples/php/structural/decorator/VanillaCoffee.php
@@ -0,0 +1,23 @@
+<?php
+
+namespace design_patterns\structural\decorator;
+
+class VanillaCoffee implements Coffee
+{
+    private Coffee $coffee;
+
+    public function __construct(Coffee $coffee)
+    {
+        $this->coffee = $coffee;
+    }
+
+    public function getCost(): float
+    {
+        return $this->coffee->getCost() + 3;
+    }
+
+    public function getDescription(): string
+    {
+        return $this->coffee->getDescription() . ', vanilla';
+    }
+}
diff --git a/examples/php/structural/decorator/WhipCoffee.php b/examples/php/structural/decorator/WhipCoffee.php
new file mode 100644
index 00000000..ab3b9ebb
--- /dev/null
+++ b/examples/php/structural/decorator/WhipCoffee.php
@@ -0,0 +1,23 @@
+<?php
+
+namespace design_patterns\structural\decorator;
+
+class WhipCoffee implements Coffee
+{
+    private Coffee $coffee;
+
+    public function __construct(Coffee $coffee)
+    {
+        $this->coffee = $coffee;
+    }
+
+    public function getCost(): float
+    {
+        return $this->coffee->getCost() + 5;
+    }
+
+    public function getDescription(): string
+    {
+        return $this->coffee->getDescription() . ', whip';
+    }
+}
diff --git a/examples/php/structural/facade/Computer.php b/examples/php/structural/facade/Computer.php
new file mode 100644
index 00000000..2d1861a0
--- /dev/null
+++ b/examples/php/structural/facade/Computer.php
@@ -0,0 +1,41 @@
+<?php
+
+namespace design_patterns\structural\facade;
+
+class Computer
+{
+    public function getElectricShock(): string
+    {
+        return "Ouch!";
+    }
+
+    public function makeSound(): string
+    {
+        return "Beep beep!";
+    }
+
+    public function showLoadingScreen(): string
+    {
+        return "Loading..";
+    }
+
+    public function bam(): string
+    {
+        return "Ready to be used!";
+    }
+
+    public function closeEverything(): string
+    {
+        return "Bup bup bup buzzzz!";
+    }
+
+    public function sooth(): string
+    {
+        return "Zzzzz";
+    }
+
+    public function pullCurrent(): string
+    {
+        return "Haaah!";
+    }
+}
diff --git a/examples/php/structural/facade/ComputerFacade.php b/examples/php/structural/facade/ComputerFacade.php
new file mode 100644
index 00000000..4b205908
--- /dev/null
+++ b/examples/php/structural/facade/ComputerFacade.php
@@ -0,0 +1,34 @@
+<?php
+
+namespace design_patterns\structural\facade;
+
+class ComputerFacade
+{
+    private Computer $computer;
+
+    public function __construct(Computer $computer)
+    {
+        $this->computer = $computer;
+    }
+
+    public function turnOn(): string
+    {
+        return sprintf(
+            '%s %s %s %s',
+            $this->computer->getElectricShock(),
+            $this->computer->makeSound(),
+            $this->computer->showLoadingScreen(),
+            $this->computer->bam()
+        );
+    }
+
+    public function turnOff(): string
+    {
+        return sprintf(
+            '%s %s %s',
+            $this->computer->closeEverything(),
+            $this->computer->pullCurrent(),
+            $this->computer->sooth()
+        );
+    }
+}
diff --git a/examples/php/structural/facade/Facade.png b/examples/php/structural/facade/Facade.png
new file mode 100644
index 00000000..a73846fe
Binary files /dev/null and b/examples/php/structural/facade/Facade.png differ
diff --git a/examples/php/structural/facade/FacadeTest.php b/examples/php/structural/facade/FacadeTest.php
new file mode 100644
index 00000000..6613078a
--- /dev/null
+++ b/examples/php/structural/facade/FacadeTest.php
@@ -0,0 +1,21 @@
+<?php
+
+namespace design_patterns\structural\facade;
+
+use PHPUnit\Framework\TestCase;
+
+/*
+$computer = new ComputerFacade(new Computer());
+$computer->turnOn(); // Ouch! Beep beep! Loading.. Ready to be used!
+$computer->turnOff(); // Bup bup buzzz! Haah! Zzzzz
+*/
+
+class FacadeTest extends TestCase
+{
+    public function test01(): void
+    {
+        $computer = new ComputerFacade(new Computer());
+        self::assertEquals('Ouch! Beep beep! Loading.. Ready to be used!', $computer->turnOn());
+        self::assertEquals('Bup bup bup buzzzz! Haaah! Zzzzz', $computer->turnOff());
+    }
+}
diff --git a/examples/php/structural/flyweight/Flyweight.png b/examples/php/structural/flyweight/Flyweight.png
new file mode 100644
index 00000000..fd0edf57
Binary files /dev/null and b/examples/php/structural/flyweight/Flyweight.png differ
diff --git a/examples/php/structural/flyweight/FlyweightTest.php b/examples/php/structural/flyweight/FlyweightTest.php
new file mode 100644
index 00000000..a2123104
--- /dev/null
+++ b/examples/php/structural/flyweight/FlyweightTest.php
@@ -0,0 +1,34 @@
+<?php
+
+namespace design_patterns\structural\flyweight;
+
+use PHPUnit\Framework\TestCase;
+
+/*
+$teaMaker = new TeaMaker();
+$shop = new TeaShop($teaMaker);
+
+$shop->takeOrder('less sugar', 1);
+$shop->takeOrder('more milk', 2);
+$shop->takeOrder('without sugar', 5);
+
+$shop->serve();
+// Serving tea to table# 1
+// Serving tea to table# 2
+// Serving tea to table# 5
+*/
+
+class FlyweightTest extends TestCase
+{
+    public function test01(): void
+    {
+        $teaMaker = new TeaMaker();
+        $shop = new TeaShop($teaMaker);
+
+        $shop->takeOrder('less sugar', 1);
+        $shop->takeOrder('more milk', 2);
+        $shop->takeOrder('without sugar', 5);
+
+        self::assertEquals("Serving tea to table 1...\nServing tea to table 2...\nServing tea to table 5...\n", $shop->serve());
+    }
+}
diff --git a/examples/php/structural/flyweight/KarakTea.php b/examples/php/structural/flyweight/KarakTea.php
new file mode 100644
index 00000000..f81830f2
--- /dev/null
+++ b/examples/php/structural/flyweight/KarakTea.php
@@ -0,0 +1,9 @@
+<?php
+
+namespace design_patterns\structural\flyweight;
+
+// Anything that will be cached is flyweight.
+// Types of tea here will be flyweights.
+class KarakTea
+{
+}
diff --git a/examples/php/structural/flyweight/TeaMaker.php b/examples/php/structural/flyweight/TeaMaker.php
new file mode 100644
index 00000000..380deea7
--- /dev/null
+++ b/examples/php/structural/flyweight/TeaMaker.php
@@ -0,0 +1,17 @@
+<?php
+
+namespace design_patterns\structural\flyweight;
+
+class TeaMaker
+{
+    private array $availableTea = [];
+
+    public function make(string $preference)
+    {
+        if (empty($this->availableTea[$preference])) {
+            $this->availableTea[$preference] = new KarakTea();
+        }
+
+        return $this->availableTea[$preference];
+    }
+}
diff --git a/examples/php/structural/flyweight/TeaShop.php b/examples/php/structural/flyweight/TeaShop.php
new file mode 100644
index 00000000..4a95fe29
--- /dev/null
+++ b/examples/php/structural/flyweight/TeaShop.php
@@ -0,0 +1,29 @@
+<?php
+
+namespace design_patterns\structural\flyweight;
+
+class TeaShop
+{
+    private array $orders;
+    private TeaMaker $teaMaker;
+
+    public function __construct(TeaMaker $teaMaker)
+    {
+        $this->teaMaker = $teaMaker;
+    }
+
+    public function takeOrder(string $teaType, int $table): void
+    {
+        $this->orders[$table] = $this->teaMaker->make($teaType);
+    }
+
+    public function serve(): string
+    {
+        $output = '';
+        foreach ($this->orders as $table => $tea) {
+            $output .= "Serving tea to table {$table}...\n";
+        }
+
+        return $output;
+    }
+}
diff --git a/examples/php/structural/proxy/Door.php b/examples/php/structural/proxy/Door.php
new file mode 100644
index 00000000..c851f0a8
--- /dev/null
+++ b/examples/php/structural/proxy/Door.php
@@ -0,0 +1,9 @@
+<?php
+
+namespace design_patterns\structural\proxy;
+
+interface Door
+{
+    public function open(): string;
+    public function close(): string;
+}
diff --git a/examples/php/structural/proxy/LabDoor.php b/examples/php/structural/proxy/LabDoor.php
new file mode 100644
index 00000000..4f73831e
--- /dev/null
+++ b/examples/php/structural/proxy/LabDoor.php
@@ -0,0 +1,16 @@
+<?php
+
+namespace design_patterns\structural\proxy;
+
+class LabDoor implements Door
+{
+    public function open(): string
+    {
+        return "Opening lab door";
+    }
+
+    public function close(): string
+    {
+        return "Closing lab door";
+    }
+}
diff --git a/examples/php/structural/proxy/Proxy.png b/examples/php/structural/proxy/Proxy.png
new file mode 100644
index 00000000..a58d19e8
Binary files /dev/null and b/examples/php/structural/proxy/Proxy.png differ
diff --git a/examples/php/structural/proxy/ProxyTest.php b/examples/php/structural/proxy/ProxyTest.php
new file mode 100644
index 00000000..a3a6c5a5
--- /dev/null
+++ b/examples/php/structural/proxy/ProxyTest.php
@@ -0,0 +1,25 @@
+<?php
+
+namespace design_patterns\structural\proxy;
+
+use PHPUnit\Framework\TestCase;
+
+/*
+$door = new SecuredDoor(new LabDoor());
+$door->open('invalid'); // Big no! It ain't possible.
+
+$door->open('$ecr@t'); // Opening lab door
+$door->close(); // Closing lab door
+*/
+
+class ProxyTest extends TestCase
+{
+    public function test01(): void
+    {
+        $door = new SecuredDoor(new LabDoor());
+
+        self::assertEquals("Big no! It ain't possible.", $door->open('invalid'));
+        self::assertEquals('Opening lab door', $door->open('$ecr@t'));
+        self::assertEquals('Closing lab door', $door->close());
+    }
+}
diff --git a/examples/php/structural/proxy/SecuredDoor.php b/examples/php/structural/proxy/SecuredDoor.php
new file mode 100644
index 00000000..542f6018
--- /dev/null
+++ b/examples/php/structural/proxy/SecuredDoor.php
@@ -0,0 +1,32 @@
+<?php
+
+namespace design_patterns\structural\proxy;
+
+class SecuredDoor
+{
+    private Door $door;
+
+    public function __construct(Door $door)
+    {
+        $this->door = $door;
+    }
+
+    public function open(string $password): string
+    {
+        if (!$this->authenticate($password)) {
+            return "Big no! It ain't possible.";
+        }
+
+        return $this->door->open();
+    }
+
+    public function authenticate(string $password): bool
+    {
+        return $password === '$ecr@t';
+    }
+
+    public function close(): string
+    {
+        return $this->door->close();
+    }
+}