Useragent Database Check

if(!empty($_CONFIG['Agent']) && $_CONFIG['Agent']  = 1){
    $needle_agent = array('Browser','Crawler','Mobile Browser','Console','E-mail Client','LinkChecker','Validator','Cloud Platforms','Other','Feed Reader','E-mail Collector');
    $query_agent = explode(';',file_get_contents("http://www.useragentstring.com/?uas=".urlencode($_SERVER['HTTP_USER_AGENT'])."&getText=all"));
    foreach($needle_agent as $needle){
        if(stripos($query_agent[0],$needle) !== FALSE){
            $query_clear = 1;
            if($query_clear = 1){break;}
            }
        }
    if($query_clear != 1){
        logger('User-Agent',$query_agent[0]);
        die(header('refresh:0; cache/404.htm', false));
        }
    }