youtube url to embed

CHANGELOG.md

@@ -2,6 +2,10 @@
 
 All notable changes to this project will be documented in this file. This project adheres to [Semantic Versioning](https://semver.org/).
 
+## 1.5.0 ()
+
++ Added new `StringHelper::toYouTubeEmbed()` function to extract YouTube links into an Embed links.
+
 ## 1.4.3 (9. August 2023)
 
 + Fixed bug with wrong quoted regex in StringHelper::highlightWord() method.

src/helpers/ExportHelper.php

@@ -154,7 +154,7 @@ protected static function generateOutputString(array $input, $delimiter)
     {
         $output = null;
         foreach ($input as $row) {
-            $output.= self::generateRow($row, $delimiter, '"');
+            $output .= self::generateRow($row, $delimiter, '"');
         }
 
         return $output;

src/helpers/StringHelper.php

@@ -21,6 +21,25 @@
  */
 class StringHelper extends BaseStringHelper
 {
+    /**
+     * Convert a YouTube link to an Embedable Video URL.
+     *
+     * If the given input url is invalid, false is returned.
+     *
+     * @param string $url
+     * @return string|boolean
+     * @see https://stackoverflow.com/a/48130447
+     */
+    public static function toYouTubeEmbed($url)
+    {
+        preg_match('%(?:youtube(?:-nocookie)?\.com/(?:[^/]+/.+/|(?:v|e(?:mbed)?)/|.*[?&]v=)|youtu\.be/)([^"&?/ ]{11})%i', $url, $match);
+
+        if (isset($match[1])) {
+            return 'https://www.youtube.com/embed/' . $match[1];
+        }
+
+        return false;
+    }
     /**
      * TypeCast a string to its specific types.
      *
@@ -275,7 +294,7 @@ public static function truncateMiddle($content, $word, $length, $affix = '..', $
         // we could not find any match, therefore use casual truncate method.
         if ($first === false) {
             // as the length value in truncate middle stands for to the left and to the right, we multiple this value with 2
-            return self::truncate($content, ($length*2), $affix);
+            return self::truncate($content, ($length * 2), $affix);
         }
 
         $last = $first + mb_strlen($word);

tests/helpers/StringHelperTest.php

@@ -7,6 +7,13 @@
 
 class StringHelperTest extends HelpersTestCase
 {
+    public function testToYouTubeEmbed()
+    {
+        $this->assertSame('https://www.youtube.com/embed/NVcpJZJ60Ao', StringHelper::toYouTubeEmbed('https://www.youtube.com/watch?v=NVcpJZJ60Ao'));
+        $this->assertSame('https://www.youtube.com/embed/NVcpJZJ60Ao', StringHelper::toYouTubeEmbed('https://www.youtu.be/NVcpJZJ60Ao'));
+        $this->assertSame('https://www.youtube.com/embed/NVcpJZJ60Ao', StringHelper::toYouTubeEmbed('https://www.youtube.com/watch?time_continue=1&v=NVcpJZJ60Ao'));
+    }
+
     public function testStringTypeCast()
     {
         $this->assertSame(0, StringHelper::typeCast("0"));