php中点击网页不跳转执行程序

if($code[\'result_code\'] !=\'FAIL\')
    {
        echo "<script type=\'text/javascript\'>
        alert(\'退款成功,请耐心等待\');history.back();
    </script>";
        //echo "退款成功";
        ; 
    }else{
        echo "<script type=\'text/javascript\'>
        alert(\'退款失败,请联系客服~~~\');history.back();
    </script>";
    
    }