problema eliminazione tags

[filippo.toso]

Studiati questo codice:

<?php 

$content = '

<input type="image" height="90" width="728" src="/userfiles/image/seo.gif" /></p>';

$pattern = '#src="(.*?)"#si';

$url = null;
if (preg_match($pattern, $content, $matches)) {
    $url = $matches[1];
}

print($url)

?>