invisio v2.0

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

if ($connection) {

$create_user = mysqli_real_escape_string($connection, $_POST['create_user']);
    $temp_id = explode(".", $create_user);
    $create_user = bigsara_decode($temp_id[0], $temp_id[1]);

$faq_id = mysqli_real_escape_string($connection, $_POST['faq_id']);
    $faq_question = mysqli_real_escape_string($connection, $_POST['faq_question']);
    $faq_answer = mysqli_real_escape_string($connection, $_POST['faq_answer']);

$sql_insert = "INSERT INTO tbl_faq SET
    faq_id = '$faq_id'
    ,create_user_id = '$create_user'
    ,faq_question = '$faq_question'
    ,faq_answer = '$faq_answer'";
    $res_insert = mysqli_query($connection, $sql_insert) or die($connection->error);
    
    if ($res_insert) {
        $arr['result'] = 1;
    } else {
        $arr['result'] = 0;
    }
} else {
    $arr['result'] = 9;
}

mysqli_close($connection);
echo json_encode($arr);