一段挖掘新浪视频真是文件地址的脚本

新浪的“专辑：射雕英雄传[50集*国语](胡戈版)-新浪播客”地址是：
能够直接看比较清晰的电视剧了，确实不错，不过要想下载就不容易了，地址不是明文写到网页里的，下面是获取地址的PHP脚本，供交流、研究，请多多批评

<?php
$url[0] = '';

$reg[0] = "/href=\"([^\"]*)\"[^>]+>[^\d]{2}(\d+)[^\d]{2}<\/a>/isU";
$reg[1] = "/addVariable\(\"chn1\"\, \"(\d+)\"\);/isU";
$reg[2] = "/addVariable\(\"video_play_url\",escape\(\"(.*)\"\)\);/isU";
$reg[3] = "/var vid=\'(\d+)\';/isU";
$reg[4] = "/<\/url>/isU";


$html = file_get_contents($url[0]);
preg_match_all($reg[0], $html, $t);

foreach($t[1] as $key=>$value) {
        $purl = $value;
        $filename = $t[2][$key] . ".mp4";
        $html = file_get_contents($purl);
        preg_match($reg[1], $html, $t1);
        preg_match($reg[2], $html, $t2);
        preg_match($reg[3], $html, $t3);
        $vpurl = "$t2[1]?vid=$t3[1]&pid=$t1[1]";
              
        $html = file_get_contents($vpurl);

        preg_match($reg[4], $html, $t4);
        echo $t4[1] . "\r\n";
}
    
?>