link youtube automatico

youtube.php

<?php
$video =  "https://www.youtube.com/watch?v=1tnYpkt5G2g"; // $video recebe o valor da url do youtube (link)
preg_match('/(v\/|\?v=)([^&?\/]{5,15})/', $video, $x); // Faz o preg_match para retirar caracters
?>
<!-- Exibe o video -->
<object width="560" height="315">
	<param name="movie" value="//www.youtube.com/v/<?php print end($x); ?>?hl=pt_BR&amp;version=3&amp;rel=0"></param>
	<param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param>
	<embed src="//www.youtube.com/v/<?php print end($x); ?>?hl=pt_BR&amp;version=3&amp;rel=0" type="application/x-shockwave-flash" width="560" height="315" allowscriptaccess="always" allowfullscreen="true"></embed>
</object>

$searchText = 'link do youtube';
$result = preg_replace('/(?:https?:\/\/)?(?:www\.)?youtu(?:\.be|be\.com)\/(?:watch\?v=)?([\w-]{10,})/m', '$1', $searchText);