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//½«ÍøÖ·µÄ²ÎÊýתΪ±äÁ¿,Èç:xxx.php?a=1&b=2,
//ÔËÐз½·¨ºó,echo $a."|".$b, ½á¹û:1|2
extract($_GET);
//unicodeתutf8£¬Èç:&#20013»ò \u9865  ×ª ³É ÖÐÎÄ
function unescape($str) {
    $str = rawurldecode($str);
    preg_match_all("/(?:%u.{4})|&#x.{4};|&#\d+;|.+/U",$str,$r);
    $ar = $r[0];
    //print_r($ar);
    foreach($ar as $k=>$v) {
        if(substr($v,0,2) == "%u")
            $ar[$k] = iconv("UCS-2","UTF-8",pack("H4",substr($v,-4)));
        elseif(substr($v,0,3) == "&#x")
            $ar[$k] = iconv("UCS-2","UTF-8",pack("H4",substr($v,3,-1)));
        elseif(substr($v,0,2) == "&#") {
            //echo substr($v,2,-1)."\n";
            $ar[$k] = iconv("UCS-2","UTF-8",pack("n",substr($v,2,-1)));
        }
    }
    return join("",$ar);
}