invisio v2.0

<?php
    include('../../../config/main_function.php');
    $secure = "cAh3DrJACzw4RbU";
    $connection = connectDB($secure);

$userId = mysqli_real_escape_string($connection, $_POST['userId']);

if($connection){
        $find_member = "SELECT m.* FROM tbl_member m WHERE m.line_id = '$userId';";
        $rs_member = mysqli_query($connection, $find_member);
        $row = mysqli_fetch_array($rs_member);
        $num_rows = mysqli_num_rows($rs_member);

if ($num_rows > 0) { // เช็คแล้วว่ามีในระบบ

$member_level = $row['member_level'];
            $register_type = $row['register_type'];
            $register_level = $row['register_level'];
            //$username = $row['username'];

$key = randomCode(10); // กุญแจ ////dfg4k7id50g
            $pointer = rand(0, 9); //5
            // เอา Member_id เข้า Encode ก่อน
            $step_1 = bigsara_encode($row['member_id'], $key, $pointer); //Login Code
            // เอา Login Code ต่อคำกับ $step 1 
            $login_code = $step_1 . "." . $key;
            //$arr['username'] = $username;
            $arr['login_code'] = $login_code;
            $arr['member_level'] = $member_level;
            $arr['register_type'] = $register_type;
            $arr['register_level'] = $register_level;

$result = 1;
        } else { // เช็คแล้วว่าไม่มีในระบบ
            $arr['login_code'] = null;
            $arr['member_level'] = null;
            $arr['register_type'] = null;
            $arr['register_level'] = null;
            $arr['verify'] = null;
            $result = 2;
        }
    }else{
        $result = 0;
    }
    $arr['result'] = $result;
    echo json_encode($arr);
    mysqli_close($connection);
?>