一个简单的正则优化

Question

thunder://QUFodHRwOi8vd3d3Lmh6aHUuY29tLzNncC8lNWIlZTQlYmElYmElZTklODAlYTAlZTUlYTMlYWIlZTUlODUlYjUlNWQxLjNncFpa'

Answer 1

<LI><img src='img/down.gif' border='0' alt='down' /><a href='#' thunderType='' thunderResTitle='' onclick='return OnDownloadClick_Simple(this,2,4)' oncontextmenu='ThunderNetwork_SetHref(this)' thunderPid='39187' thunderHref='thunder://QUFodHRwOi8vd3d3Lmh6aHUuY29tLzNncC8lNWIlZTQlYmElYmElZTklODAlYTAlZTUlYTMlYWIlZTUlODUlYjUlNWQ1Lm1wNC4zZ3BaWg=='>迅雷专用链下载第5部分：人造士兵</a></LI><LI><img src='img/down.gif' border='0' alt='down' /><a href="#" onClick="ConvertURL2FG('Flashget://W0ZMQVNIR0VUXWh0dHA6Ly93d3cuaHpodS5jb20vM2dwLyU1YiVlNCViYSViYSVlOSU4MCVhMCVlNSVhMyVhYiVlNSU4NSViNSU1ZDEuM2dwW0ZMQVNIR0VUXQ==&16972','http://www.hzhu.com/3gp/%5b%e4%ba%ba%e9%80%a0%e5%a3%ab%e5%85%b5%5d1.3gp',16972)" oncontextmenu="Flashget_SetHref(this)" fg="Flashget://W0ZMQVNIR0VUXWh0dHA6Ly93d3cuaHpodS5jb20vM2dwLyU1YiVlNCViYSViYSVlOSU4MCVhMCVlNSVhMyVhYiVlNSU4NSViNSU1ZDEuM2dwW0ZMQVNIR0VUXQ==&16972">快车专用链下载第1部分：人造士兵</a></LI>要匹配的字符串

Answer 2

preg_match_all('/thunder:\/\/[^\'\"\>]*|flashget:\/\/[^\'\"\>]*/is',$str,$matches);
print_r($matches);

Answer 3

试下向前查找，正则表达式修改下$pat="/thunder:\/\/(.*?)(?=[\"\'\s\>])|flashget:\/\/(.*?)(?=[\"\'\s\>])/is";

Answer 4

function get_down($str){
    $pat="/thunder:\/\/([^<>\"\']+)|flashget:\/\/([^<>\"\']+)/is";
    preg_match_all($pat,$str,$matches);
    return $matches;
}