file_get_contents is doing strange on server - php

Question

this is a script that gives you a direct mp3 download link from a youtube video id, variable $gg is the video id
So when i run this code on my xampp locally it runs fine and returns me a direct download link but when i try to run this code on my hosts server it returns a link but not a direct link but a download page what am i doing wrong?
<?php
$gg = '6Y1Emb7Jyks';
$site = 'http://www.youtubeinmp3.com/widget/button/?video=https://www.youtube.com/watch?v='.$gg;
$html = file_get_contents($site);
$dom = new DOMDocument();
#$dom->loadHTML($html);
$xpath = new DOMXPath($dom);
$hrefs = $xpath->evaluate("/html/body//a");
for ($i = 0; $i < $hrefs->length; $i++) {
$href = $hrefs->item($i);
$url = $href->getAttribute('href');
}
$lol = 'http://www.youtubeinmp3.com/'.$url;
echo $lol;

Answer 1

figured it out myself i had to follow the redirect
final code
<?php
$gg = '6Y1Emb7Jyks';
$site = 'http://www.youtubeinmp3.com/widget/button/?video=https://www.youtube.com/watch?v='.$gg;
$html = file_get_contents($site);
$dom = new DOMDocument();
#$dom->loadHTML($html);
$xpath = new DOMXPath($dom);
$hrefs = $xpath->evaluate("/html/body//a");
for ($i = 0; $i < $hrefs->length; $i++) {
$href = $hrefs->item($i);
$url = $href->getAttribute('href');
}
$lol = 'http://www.youtubeinmp3.com/'.$url;
$url= $lol;
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_HEADER, true);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$a = curl_exec($ch);
$url = curl_getinfo($ch, CURLINFO_EFFECTIVE_URL);
echo $url;