<?php
function EXTube($url)
{
    $url = str_replace(' ', '', $url);
    if(!empty($url)):
        curl_setopt($curl = curl_init($url), CURLOPT_RETURNTRANSFER, 1);
        preg_match("/video_url = '([^';]+)/i", curl_exec($curl), $video);
        curl_close($curl);
        $video = str_replace('∫', '&int', $video[1]);
        header("Location: ".urldecode($video));
    endif;
}

(!empty($_GET['url'])) ? EXTube($_GET['url']) : 'E o link ?';
?>