Start implementation

Author: Christian Blank

src/Checker.php

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+<?php
+
+namespace StructureCheck;
+
+use StructureCheck\Type\TypeInterface;
+
+/**
+ * Class Checker
+ * @package StructureCheck
+ */
+class Checker implements CheckerInterface
+{
+
+    /**
+     * @inheritdoc
+     */
+    public function fulfills(array $argument1, TypeInterface $requirement)
+    {
+        return new Result(true, []);
+    }
+
+}

src/CheckerInterface.php

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+<?php
+
+namespace StructureCheck;
+
+use StructureCheck\Type\TypeInterface;
+
+/**
+ * Interface CheckerInterface
+ * @package StructureCheck
+ */
+interface CheckerInterface
+{
+
+    /**
+     * @param array $tested
+     * @param TypeInterface $requirement
+     *
+     * @return ResultInterface
+     */
+    public function fulfills(array $tested, TypeInterface $requirement);
+}

src/Result.php

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+<?php
+
+namespace StructureCheck;
+
+/**
+ * Class Result
+ * @package StructureCheck
+ */
+class Result implements ResultInterface
+{
+
+    /**
+     * @var bool
+     */
+    private $valid;
+
+    /**
+     * @var array
+     */
+    private $errors;
+
+    /**
+     * Result constructor.
+     *
+     * @param bool $valid
+     * @param array $errors
+     */
+    public function __construct($valid, array $errors)
+    {
+        $this->valid = $valid;
+        $this->errors = $errors;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function isValid()
+    {
+        return true;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getErrors()
+    {
+        return [];
+    }
+}

src/ResultInterface.php

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+<?php
+
+namespace StructureCheck;
+
+/**
+ *
+ * @package StructureCheck
+ */
+interface ResultInterface
+{
+    /**
+     * Returns TRUE if the check was successful.
+     *
+     * @return bool
+     */
+    public function isValid();
+
+    /**
+     * Returns a list of errors. If no error occurred, it will return an empty array.
+     *
+     * @return array
+     */
+    public function getErrors();
+}

src/Type/TypeInterface.php

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+<?php
+
+namespace StructureCheck\Type;
+
+use StructureCheck\ResultInterface;
+
+/**
+ * Interface TypeInterface
+ * @package StructureCheck\Type
+ */
+interface TypeInterface
+{
+    /**
+     * @param mixed $value
+     *
+     * @return ResultInterface
+     */
+    public function check($value);
+}