PHP实现将优酷土豆腾讯视频html地址转换成flash swf地址的方法

<?php/** * 支持优酷、土豆、腾讯视频html到swf转换 */function convert_html_to_swf($url = ''){  if(!is_string($url) || empty($url)) return ;  if(strpos($url, 'swf')) return $url;  preg_match_all('/http:////(.*?)?/.(.*?)?/.com//(.*)/', $url, $types);  $type = $types[2][0];  $domain = $types[1][0];  switch ($type) {    case 'youku' :      preg_match_all('/http:////v/.youku/.com//v_show//id_(.*)?/.html/', $url, $url_array);      $swf = 'http://player.youku.com/player.php/sid/' . str_replace('/', '', $url_array[1][0]) . '/v.swf';      break;    case 'tudou' :      $method = substr($types[3][0], 0, 1);      $method = $method == 'p' ? 'v' : $method;      preg_match_all('/http:////www.tudou/.com//(.*)?//(.*)?/', $url, $url_array);      $str_arr = explode('/', $url_array[1][0]);      $count = count($str_arr);      if ($count == 1) {        $id = explode('.', $url_array[2][0]);        $id = $id[0];      } else if ($count == 2) {        $id = $str_arr[1];      } else if ($count == 3) {        $id = $str_arr[2];      }      $swf = 'http://www.tudou.com/' . $method . '/' . $id . '/v.swf';      break;    case 'qq' :      $url_array = parse_url($url);      $swf = "http://static.video.qq.com/TPout.swf?{$url_array['query']}&auto=0";      break;    default :      $swf = $url;      break;  }  return $swf;}/** * 优酷视频转换测试 * html地址 http://v.youku.com/v_show/id_XNzU4Mzg2NDA4.html?f=22720170&ev=2&from=y1.1-2.10001-0.1-2 * swf地址 http://player.youku.com/player.php/sid/XNzU4Mzg2NDA4/v.swf */echo convert_html_to_swf("http://v.youku.com/v_show/id_XNzU4Mzg2NDA4.html?f=22720170&ev=2&from=y1.1-2.10001-0.1-2");echo "<hr>";/** * 腾讯视频转换测试 * * html地址 http://v.qq.com/cover/w/w5lb270k15j7ita.html?vid=v0015mnd5x6 * swf地址 http://static.video.qq.com/TPout.swf?vid=v0015mnd5x6&auto=0 */echo convert_html_to_swf("http://v.qq.com/cover/w/w5lb270k15j7ita.html?vid=v0015mnd5x6");echo "<hr>";/** * 土豆视频转换测试 * * html地址 http://www.tudou.com/albumplay/hqtp6W5XLN8/Kscjyz4J-RE.html * swf地址 http://www.tudou.com/a/hqtp6W5XLN8/&iid=132223533&resourceId=0_04_0_99/v.swf */echo convert_html_to_swf("http://www.tudou.com/albumplay/hqtp6W5XLN8/Kscjyz4J-RE.html");echo "<hr>";