<form action="youtube.php" method="get">
                    <label for="item"> Video ID:</label>
                    <input name="item" id="item" type="text" size="30"><br>
                    <label for="type">Type:</label>
                    <select id="type" name="type">
                        <option value="0">Format FLV &nbsp;</option>
                        <option value="25">MP3 &nbsp;</option>
                        <option value="13">Format 3GP &nbsp;</option>
                        <option value="18">Format MP4</option>
                                    <option value="22">Format MP4 (HD)</option>
                        
                    </select> <label for="btget">&nbsp;</label>
                    <input name="btget" id="btget" type="submit" class="boton" value="Download Video">
                    <br>
    </form>

<?php
function getContent($url) {
    $ch = curl_init();
    curl_setopt ($ch, CURLOPT_URL, $url);
    curl_setopt ($ch, CURLOPT_HEADER, 0);

    ob_start();
    curl_exec ($ch);
    curl_close ($ch);
    $string = ob_get_contents();
    ob_end_clean();
    return $string;    
}
function fetch_headers($url) {
   $headers = array();
   $url = trim($url);

   $ch = curl_init();
   curl_setopt($ch, CURLOPT_URL, $url);
   curl_setopt($ch, CURLOPT_HEADER, 1);
   curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
   curl_setopt($ch, CURLOPT_NOBODY ,1);
   $data = curl_exec($ch);
   $errormsg = curl_error($ch);
   curl_close($ch);
               
   $headers = explode("\n", $data);
   return $headers;
}
function getYoutubeToken($id) {
   $path = "http://208.117.236.70/get_video_info?";
   $cont = getContent($path."&video_id=".$id);
   parse_str($cont, $opts);
   return $opts['token'];
}


$videoItem = trim($_GET['item']);
$videoType = "";
$videoPath = "http://208.117.236.70/get_video";

if ($_GET['type'] != "0") {
   $videoType = "&fmt=".$_GET['type'];
}
if ($videoItem != "") {
   $videoTokn = getYoutubeToken($videoItem);
   $videoURL = $videoPath."?video_id=".$videoItem."&t=".$videoTokn.$videoType;
   $headers = fetch_headers($videoURL);
   for ($i=0; $i<count($headers); $i++) {
      if (strstr($headers[$i], "ocation:")) {
         $str1 = explode("ocation:", $headers[$i]);
         $link = trim($str1[1]);
         break;
      }
   }
   $link = str_replace("v18.lscache5.c.youtube.com", "v6.cache1.googlevideo.com", $link);
   header("Location: ".$link);
   exit;
} 
?>