【www.bbyears.com--正则表达式】
$url ="http://www.111cn.net";
$body=@file_get_contents($url);
preg_match_all("/href=[""]?([^""]*)[""]?>(.*)/i",$body,$b);
$nums = array();
foreach($b[1] as $u){
if(in_array($u,$nums)){
continue;
}
$nums[]=$u;
$title=strip_tags($u);
echo $title."";
}