超链接转换成绝对地址,能否完全使用正则解决?
从网页抓取到的超链接格式多变,怎样全部转换成绝对地址呢?
<?php$paths=array("http://we.us","x.y.z","a.b.cn/en/","http://a.b.cn/en/js","a.b.cn/js/","a.b.cn/en/js/ext","a.b.cn/en/css/ext/");$files=array("http://so.do.i","http://a.b.cn/","./","../","../../","../js/","/js","/css/blue.css","../../en/js/ad.js");foreach($paths as $path){ foreach($files as $file){ echo realfile($path,$file); }}function realfile($path,$file){//返回文件file的绝对地址,//如果文件地址是相对地址,则以路径path为参照/* $real=$path.$file;//要完善的内容*/ return '<li>'.$real.'</li>';}?>