php获取优酷土豆页面中视频swf播放器地址

1. 项目用到临时写的。待完善 
2. /* 
3.      * 根据用户提交的(swf/html)地址，获取优酷，土豆的swf播放地址 
4.      * */ 
5.     private function _getSwf ($url = &＃39;&＃39;) { 
6.         if(isset($url) && !emptyempty($url)){ 
7.             preg_match_all(&＃39;/http://(.*?)?.(.*?)?.com/(.*)/&＃39;,$url,$types); 
8.         }else{ 
9.             return false; 
10.         } 
11.         $type = $types[2][0]; 
12.         $domain = $types[1][0]; 
13.         $isswf = strpos($types[3][0], &＃39;v.swf&＃39;) === false ? false : true; 
14.         $method = substr($types[3][0],0,1); 
15.         switch ($type){ 
16.             case &＃39;youku&＃39; : 
17.                 if( $domain == &＃39;player&＃39; ) { 
18.                     $swf = $url; 
19.                 }else if( $domain == &＃39;v&＃39; ) { 
20.                     preg_match_all(&＃39;/http://v.youku.com/v_show/id_(.*)?.html/&＃39;,$url,$url_array); 
21.                     $swf = &＃39;http://player.youku.com/player.php/sid/&＃39;.str_replace(&＃39;/&＃39;,&＃39;&＃39;,$url_array[1][0]).&＃39;/v.swf&＃39;; 
22.                 }else{ 
23.                     $swf = $url; 
24.                 } 
25.                 break; 
26.             case &＃39;tudou&＃39; : 
27.                 if($isswf){ 
28.                     $swf = $url; 
29.                 }else{ 
30.                     $method = $method == &＃39;p&＃39; ? &＃39;v&＃39; : $method ; 
31.                     preg_match_all(&＃39;/http://www.tudou.com/(.*)?/(.*)?/&＃39;,$url,$url_array); 
32.                     $str_arr = explode(&＃39;/&＃39;,$url_array[1][0]); 
33.                     $count = count($str_arr); 
34.                     if($count == 1) { 
35.                         $id = explode(&＃39;.&＃39;,$url_array[2][0])[0]; 
36.                     }else if($count == 2){ 
37.                         $id = $str_arr[1]; 
38.                     }else if($count == 3){ 
39.                         $id = $str_arr[2]; 
40.                     } 
41.                     $swf = &＃39;http://www.tudou.com/&＃39;.$method.&＃39;/&＃39;.$id.&＃39;/v.swf&＃39;; 
42.                 } 
43.                 break; 
44.             default : 
45.                 $swf = $url; 
46.                 break; 
47.         } 
48.         return $swf; 
49.     }