s_get Get_ id deny_words array union char select group order benchmark

$s_get=$Get_['id']
        $deny_words = array("union","char","select","group","order","benchmark", "%", "_");
        str_replace($deny_words, "", strtolower($s_get), $count); 
         if ($count > 0) {
        exit('404'); 
$s_get= "SELECT user FROM userslist WHERE userid=".intval($_GET['id']);