php代码
<?php
//--调用方法http://xiaomizhou.net/demo/flv.php?url=http://v.youku.com/v_show/id_xmzg2otq3mjqw.html
echo fetch_youku_flv($_get['url']);
function fetch_youku_flv($url){
preg_match("#id_(.*?)\.html#",$url,$out);
$id=$out[1];
$content=get_curl_contents('http://v.youku.com/player/getplaylist/videoids/'.$id);
$data=json_decode($content);
foreach($data->data[0]->streamfileids as $k=>$v){
$sid=getsid();
$fileid=getfileid($v,$data->data[0]->seed);
$one=($data->data[0]->segs->$k);
if($k == 'flv' || $k == 'mp4') return "http://f.youku.com/player/getflvpath/sid/{$sid}_00/st/{$k}/fileid/{$fileid}?k={$one[0]->k}";
continue;
}
}
function get_curl_contents($url, $second = 5){
if(!function_exists('curl_init')) die('php.ini未开启php_curl.dll');
$c = curl_init();
curl_setopt($c,curlopt_url,$url);
$useragent=$_server['http_user_agent'];
curl_setopt($c,curlopt_useragent,$useragent);
curl_setopt($c,curlopt_header,0);
curl_setopt($c,curlopt_timeout,$second);
curl_setopt($c,curlopt_returntransfer, true);
$cnt = curl_exec($c);
$cnt=mb_check_encoding($cnt,'utf-8')?iconv('gbk','utf-8//ignore',$cnt):$cnt; //字符编码转换
curl_close($c);
return $cnt;
}
function getsid() {
$sid = time().(rand(0,9000)+10000);
return $sid;
}
function getkey($key1,$key2){
$a = hexdec($key1);
$b = $a ^ 0xa55aa5a5;
$b = dechex($b);
return $key2.$b;
}
function getfileid($fileid,$seed) {
$mixed = getmixstring($seed);
$ids = explode("*",$fileid);
unset($ids[count($ids)-1]);
$realid = "";
for ($i=0;$i < count($ids);++$i) {
$idx = $ids[$i];
$realid .= substr($mixed,$idx,1);
}
return $realid;
}
function getmixstring($seed) {
$mixed = "";
$source = "abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz/\\:._-1234567890";
$len = strlen($source);
for($i=0;$i< $len;++$i){
$seed = ($seed * 211 + 30031) % 65536;
$index = ($seed / 65536 * strlen($source));
$c = substr($source,$index,1);
$mixed .= $c;
$source = str_replace($c, "",$source);
}
return $mixed;
}