[vareside]

Well, can someone actually tell me how to run this PHP code propperly? Because I just found it on the web:

function get_content_of_url($url){
$ohyeah = curl_init();
curl_setopt($ohyeah, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ohyeah, CURLOPT_URL, $url);
$data = curl_exec($ohyeah);
curl_close($ohyeah);
return $data;
}

function get_flv_link($string) {
if (eregi("watch_fullscreen\?video_id=(.*)&title=", $string, $out)) {
$outdata = $out[1];
}
return 'http://youtube.com/get_video.php?video_id='.$outdata;
}

function get_http_header($url){
$uh = curl_init();
curl_setopt($uh, CURLOPT_URL, $url);
curl_setopt($uh, CURLOPT_HEADER, 1);
curl_setopt($uh, CURLOPT_RETURNTRANSFER, 1);
$res = curl_exec($uh);
curl_close($uh);
return $res;
}

function show_url($http_header){
$arai = explode("\n",$http_header);
foreach($arai as $ini){
if(eregi("location",$ini)) $url = $ini;
}
list($sampah,$hasil) = explode("Location:",$url);
return str_replace("\n","",trim($hasil));
}

function download_youtube($url){
$data = get_content_of_url($url);
$next_url = get_flv_link($data);
$data = get_http_header($next_url);
return show_url($data);
}

$url = "http://youtube.com/watch?v=SAQZ0BDXn48";
echo download_youtube($url);