[youtube]الرابط[/youtube]

if ($PowerBB->_GET['page'] != 'topic'

$embed_player =  '
	<table widht="300" align="center" class="tborder" >
	<tr><td class="alt1">
	<object width="515" height="450">
	<param name="movie" value="http://www.youtube.com/v/\\4&hl=en_US&fs=1&rel=0&version=3">
	</param>
	<param name="allowFullScreen" value="true">
	</param>
	<param name="allowscriptaccess"value="always"></param>
	<embed src="http://www.youtube.com/v/\\4&hl=en_US&fs=1&rel=0&version=3"
	type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true"  width="515" height="450"></embed>
	 </object>
	 </td>
	 </tr>
	 </table>
	 &#39;;

	 $text = preg_replace(&#39;#(<a href="http://www.youtube.com)?/(v/([-|~_0-9A-Za-z]+)|watch\?v\=([-|~_0-9A-Za-z]+)&?.*?)">(http://www.youtube.com)?/(v/([-|~_0-9A-Za-z]+)|watch\?v\=([-|~_0-9A-Za-z]+)&?.*?)<\/a>#i&#39;, $embed_player, $text);