hangi aramadan geldi?

   <?php
    function _getURL()
    {
        $s = empty($_SERVER["HTTPS"]) ? ''
            : ($_SERVER["HTTPS"] == "on") ? "s"
            : "";
        $protocol = $this->_strleft(strtolower($_SERVER["SERVER_PROTOCOL"]), "/").$s;
        $port = ($_SERVER["SERVER_PORT"] == "80") ? ""
            : (":".$_SERVER["SERVER_PORT"]);
        return $protocol."://".$_SERVER['SERVER_NAME'].$port.$_SERVER['REQUEST_URI'];
    }


$domain = $_SERVER['HTTP_HOST'];
    
$ref = $_SERVER['HTTP_REFERER'];

        $datas = parse_url($ref);
    
        $queryValues = $datas['query'];
        $hostname = $datas['host'];
    
        if (strpos($hostname,".google."))
        {
            parse_str($queryValues,$values);
        
            $search=$values['q'];
            $pageURL = $this->_getURL();
        }

echo $search;
echo $pageurl;
?>

$referer=$_SERVER['HTTP_REFERER'];

if(eregi("google",$referer)){
$s=explode("?",$referer);
parse_str($s[1]);
$keyword= $q;
}
if(eregi("yahoo",$referer)){
$s=explode("?",$referer);
parse_str($s[1]);
$keyword= $p;
}
if(eregi("msn",$referer)){
$s=explode("?",$referer);
parse_str($s[1]);
$keyword= $q;
}
// $keyword geldiği kelime
// $_SERVER['REQUEST_URI'] geldiği sayfa