Clean up filterURL.php by removing comments

Removed commented-out code and unnecessary explanations.

Author: WizardLoop

filterURL.php

@@ -1,102 +1,92 @@
 <?php
+/* 
+the project created by @wizardloop                                                                                                                                                                                                                                                     
+*/
 
-/*
-echo "Magic";
-Function to filter the chat type by telegram url with custom filters: (b/u) 
+namespace Wizardloop\TelegramUrlParser;
 
-all type of chats: channel/group/user/bot || public/private || channel comment & topics groups
+class filterURL
+{
+public static function checkUrl(string $url): array 
+{
+    if (!filter_var($url, FILTER_VALIDATE_URL)) {
+        return ['error' => 'invalid url!'];
+    }
 
-For all supported formats, go to the examples folder.
+	if (!preg_match('/^http(s)?:\/\/t\.me\/.+\/?$/i', $url)) {
+        return ['error' => 'invalid url!'];
+    }
 
-( From my project: @GetAnyMessageRobot )
+    $result = self::parseUrl($url);
 
-# Written by PHPwiz ( php-wiz )
+    if ($result !== null) {
+    return $result;
+    }
 
-# explanation:
-$out1 = $result1['out1'] ?? null; // PATH URL 1
-$out2 = $result1['out2'] ?? null; // PATH URL 2
-$out3 = $result1['out3'] ?? null;  // PATH URL 3
-$out4 = $result1['out4'] ?? null; // PATH URL 4
-$out5 = $result1['out5'] ?? null; // PATH URL 5
+    return ['error' => 'invalid url!'];
+}
 
-PATH URL 1 ($out1):
-if path is c/C = private chat(group/channel)
-if path is u/U = user chat
-if path is b/B = chat bot
-else = (username) so its public channel/group 
+private static function parseUrl(string $url): ?array
+{
+    $path = parse_url($url, PHP_URL_PATH);
 
-*checks if path does not start with + to filter out invitation links.
-*Check only on Telegram links.
+    if (empty($path)) {
+        return null;
+    }
 
-*/
+    $segments = explode('/', trim($path, '/'));
 
-$text = 'your_telegram_link';
-
-if(preg_match('|^http(s)?://[a-z0-9-]+(.[a-z0-9-]+)*(:[0-9]+)?(/.*)?$|i',$text)){  // valid telegram url
-if (!preg_match('/^http(s)?:\/\/t\.me\/.+\/?$/i', $text)) {
-# invalid format
+    return [
+        'out1' => $segments[0] ?? null,
+        'out2' => $segments[1] ?? null,
+        'out3' => $segments[2] ?? null,
+        'out4' => $segments[3] ?? null,
+        'out5' => $segments[4] ?? null,
+    ];
 }
-if (preg_match('/^http(s)?:\/\/t\.me\/.+\/?$/i', $text)) {
-
-if(!function_exists("extractTelegramPaths")){
-function extractTelegramPaths($url) {
-$path = parse_url($url, PHP_URL_PATH);
-if (empty($path)) {
-return null; 
-}  
-$segments = explode('/', trim($path, '/'));
-$out1 = isset($segments[0]) ? $segments[0] : null;
-$out2 = isset($segments[1]) ? $segments[1] : null;
-$out3 = isset($segments[2]) ? $segments[2] : null;
-$out4 = isset($segments[3]) ? $segments[3] : null;
-$out5 = isset($segments[4]) ? $segments[4] : null;
-return [
-'out1' => $out1,
-'out2' => $out2,
-'out3' => $out3,
-'out4' => $out4,
-'out5' => $out5,
-];
 }
-}
-$result1 = extractTelegramPaths($text);
-
-if ($result1 === null) {
-# invalid format
-} else {
-$out1 = $result1['out1'] ?? null; // PATH URL 1
-$out2 = $result1['out2'] ?? null; // PATH URL 2
-$out3 = $result1['out3'] ?? null;  // PATH URL 3
-$out4 = $result1['out4'] ?? null; // PATH URL 4
-$out5 = $result1['out5'] ?? null; // PATH URL 5
 
+/* # usage example:
+use Wizardloop\TelegramUrlParser\filterURL;
+$check = filterURL::checkUrl("https://t.me/something");
+$out1 = $check['out1'] ?? null;
+$out2 = $check['out2'] ?? null;
+$out3 = $check['out3'] ?? null;
+$out4 = $check['out4'] ?? null;
+$out5 = $check['out5'] ?? null;
+
+if(isset($check['error'])){
+$error = $check['error'] ?? 'null'; # invalid url error
+}else{
 
 if(!preg_match('/^\+/',$out1)){	
-	
 if ($out5 != null) {
-# invalid format
+# invalid url
 }else{
 if ($out1 === 'c' || $out1 === 'C') {
-
 if($out4 != null){
-# invalid format
+# invalid url
 }else{
-$out2 = $result1['out2'] ?? null; // id chat
-$out3 = $result1['out3'] ?? null; // id message
+$out2 // id chat
+$out3 // id message
+
 # GROUP / CHANNEL 
 # PRIVATE
 
 // .... your logic here
 }
 
 }elseif($out1 === 'b' || $out1 === 'B') {
-$out3 = $result1['out3'] ?? null; // id message
+$out2 // id chat
+$out3 // id message
+
 # BOT
 
 // .... your logic here
 
 }elseif($out1 === 'u' || $out1 === 'U') {
-$out3 = $result1['out3'] ?? null; // id message
+$out2 // id chat
+$out3 // id message
 # USER
 
 // .... your logic here
@@ -106,8 +96,8 @@ function extractTelegramPaths($url) {
 if($out3 != null){
 # invalid format
 }else{
-$out1 = $result1['out1'] ?? null; // username
-$out2 = $result1['out2'] ?? null; // id message
+$out1 // username
+$out2 // id message
 
 # GROUP / CHANNEL 
 # PUBLIC
@@ -122,11 +112,22 @@ function extractTelegramPaths($url) {
 
 }
 if(preg_match('/^\+/',$out1)){	
-# invalid format
-}
+# invalid url
 }
 
 }
-}//else{//This is not a Telegram link.}
+*/
 
-?>
+/* # url examples:
+channel post public chat: https://t.me/username/id          # username channel + channel post id
+channel post private chat: https://t.me/c/id/id             # id channel + channel post id
+channel comment public chat: https://t.me/username/id       # Discussion Group Username + Message ID
+channel comment private chat: https://t.me/c/id/id          # Discussion Group ID + Message ID
+group message public chat: https://t.me/username/id         # username group + message id
+group message private chat: https://t.me/c/id/id            # id group + message id
+bot message: https://t.me/b/username/id                     # username bot + message id
+user message by username: https://t.me/u/username/id        # username of user + message id
+user message by id: https://t.me/u/id/id                    # user id + message id
+topics group message public chat: https://t.me/username/id  # username group + message id (remove topic id)
+topics group message private chat: https://t.me/c/id/id     # id group + message id (remove topic id)
+*/