[PHP] Common RegEx

php_regex.php

<?php

	// Let's be honest, RegEx is not fun, so these may come in handy
	// I'll update this in case I write/find more
  
  	$text = '[video mp4="http://somevideo.com/abc"]';
  	preg_match_all("\bmp4="(.+)\b", $text, $matches);
  	var_dump($matches[0]);
	// http://somevideo.com/abc
  
  	$text = '[gravityform description="true" id="23" title="true"]';
  	preg_match_all("\bid="([0-9]+)\b", $text, $matches);
  	var_dump($matches[0]);
	// 23

	// Get Youtube ID from url
	preg_match('%(?:youtube(?:-nocookie)?\.com/(?:[^/]+/.+/|(?:v|e(?:mbed)?)/|.*[?&]v=)|youtu\.be/)([^"&?/ ]{11})%i', $video_url, $match);
	var_dump($match[1]);
	// XZ-Hr7Onr7k
  
?>