[yt id="كود الفيديو" ]

function YouTube($atts) {
extract(shortcode_atts(array("id" => ''), $atts));
return '<iframe width="540" height="385" src="http://www.youtube.com/embed/'.$id.'" frameborder="0" allowfullscreen></iframe>';
}
add_shortcode("yt", "YouTube");	
?>

/http:\/\/(www\.)?vimeo.com\/(\d+)($|\/

<iframe src="http://player.vimeo.com/video/34608191?title=0&amp;byline=0&amp;portrait=0" width="400" height="225" frameborder="0" webkitAllowFullScreen mozallowfullscreen allowFullScreen></iframe><p><a href="http://vimeo.com/34608191">PressPausePlay</a> from <a href="http://vimeo.com/houseofradon">House of Radon</a> on <a href="http://vimeo.com">Vimeo</a>.</p>

'%http://(?:\S+\.swf\b|\S+?youtube\S+)%'

$text = "المقاله هنا المقاله هنا المقاله هنا المقاله هنا ومشاهده فيديو باخرها وليكن http://www.youtube.com/v/gFhSMMd6YvQ";


echo preg_replace_callback('%http://(?:\S+\.swf\b|\S+?youtube\S+)%', "youtube_eembed" , $text);


function youtube_eembed($matches){
    print "<object style='height: 390px; width: 640px'>";
    print "<param name='movie' value='{$matches[0]}'>";
    print "<param name='allowFullScreen' value='true'>";
    print "<param name='allowScriptAccess' value='always'>";
    print "<embed src='{$matches[0]}' type='application/x-shockwave-flash' allowfullscreen='true' allowScriptAccess='always' width='640' height='360'>";
    print "</object>";
}