<?php
$post = "[vbox]http://vbox7.com/play:ed7caef8[/vbox] [vbox]http://vbox7.com/play:23bbe4cb[/vbox] или [youtube]http://www.youtube.com/watch?v=5nL_TyStpYA&feature=rec-LGOUT-exp_r2-2r-4-HM[/youtube] [youtube]http://www.youtube.com/watch?v=_W57aBMYKvU&feature=popular[/youtube] много са диви";
//youtube
$post = preg_replace("/\[youtube\]http:\/\/www.youtube.com\/watch\?v=(.+?)\[\/youtube\]/s", '<object width="550" height="400"><param name="movie" value="http://www.youtube.com/v/$1&hl=en_US&fs=1&"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/$1&hl=en_US&fs=1&" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="550" height="400"></embed></object>', $post);
//vbox
$post = preg_replace("/\[vbox\]http:\/\/vbox7.com\/play:(.+?)\[\/vbox\]/s", '<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=8,0,0,0" width="450" height="403"><param name="movie" value="http://i48.vbox7.com/player/ext.swf?vid=$1"><param name="quality" value="high"><embed src="http://i48.vbox7.com/player/ext.swf?vid=$1" quality="high" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" width="450" height="403"></embed></object>', $post);
echo $post;