Submit form using ajax: Was working, now not working? - php

Question

I have the following HTML form in signup.php:
<form id="signup" action="" method="POST" autocomplete="off" autocomplete="false">
<div class="signup_row action">
<input type="text" placeholder="What's your Name?" name="name" id="name" class="signup" autocomplete="new-password" autocomplete="off" autocomplete="false" required />
<input type="text" placeholder="Got an Email?" name="email" id="email" class="signup" autocomplete="new-password" autocomplete="off" autocomplete="false" required />
<div class="g-recaptcha" style="margin-top:30px;" data-sitekey="6LeCkZkUAAAAAOeokX86JWQxuS6E7jWHEC61tS9T"></div>
<input type="submit" class="signup_bt" name="submit" id="submt" value="Create My Account">
</div>
</form>
I am trying to submit the form using ajax, without page refresh:
<!-- include files -->
<?php include 'assets/config.php';?>
<?php if(isset($_SESSION["CUSTOMER_ID"])){
header('Location: myaccount.php'); } ?>
<script>
$(function () {
$('form').on('submit', function (e) {
e.preventDefault();
$.ajax({
type: 'post',
url: 'do_signup_check.php',
data:{"name":name,"email":email},
success: function () {
if(result == 0){
$('.signup_side').fadeOut(500).promise().done(function() {
$('.signup_side').load('do_signup.php',function(){}).hide().fadeIn(500);
});
}else{
$('.signup_side').fadeOut(500).promise().done(function() {
$('.signup_side').load('assets/login.php',function(){}).hide().fadeIn(500);
}
});
});
});
</script>
I am posting the form to do_signup_check.php and running a query to see if the user is already registered. echo 1 for a positive result and 0 for a negative result:
Do_Signup_Check.php:
<?php
session_start();
require 'assets/connect.php';
$myName=$_POST["name"];
$myEmail=$_POST["email"];
$check = mysqli_query($conn, "SELECT * FROM user_verification WHERE email='".$myEmail."'");
if (!$check) {
die('Error: ' . mysqli_error($conn)); }
if(mysqli_num_rows($check) > 0){
echo '1';
}else{
echo '0';
}
?>
If the result is 0 then the ajax should load my page do_signup.php.
But alas it is not getting this far. It was working and then i switched off the computer and came back to it and now it won't work.
Please can someone show me where I've gone wrong?

Answer 1

if(result == 0){ here result is not using in success function:
you must need to pass resultant variable here:
success: function () {
as:
success: function (result) {
Now, you can use your condition if(result == 0){
Second, i suggest you to pass dataType: 'html' in your ajax request.
Edit:
You are using <?php if(isset($_SESSION["CUSTOMER_ID"])){ line in your code, if you are not using session_start() in your code then this check will not work.
For this line data:{"name":name,"email":email}, i didnt see name and email in your code, where you define these 2 variables which you are using in your ajax params.