PHP关于switch case话语中多个值匹配一个代码块的代码

    switch ($cps_sign) {        case 'yiqifa':        case 'chengguo':        case 'roiyiqifa':        case 'lkt':        case 'fanli':        case 'qqfanli':        case 'weiyi':        case 'yoyi':            $sql = "INSERT into sa_cps_list (`uv`,`s_time`,`cps`,`url`) VALUES ('{$uv}',{$timestamp},'{$cps_sign}','{$url}')";            echo $sql;exit();            mysql_query($sql);            break;        default:            break;    }