Why is my AJAX-loaded form not sending POST data to the PHP script?

Form Posting Issue in AJAX-Loaded Content

Problem:
When loading a form using $.load(), the form's POST data is not being sent to the intended PHP script. Instead, the page reloads itself.

Background:
AJAX (Asynchronous JavaScript and XML) allows you to send data to a server without reloading the entire page. Typically, this is achieved using XMLHttpRequest.

Solution:
Are you familiar with AJAX? If not, let's clarify its functionality:

AJAX allows you to post data to an external PHP file, which processes it and returns a response. The process involves:

1. Sending Data:

   • Use $.ajax() with type: "POST" and url specifying the PHP file to post to.
   • Include data in the data parameter as a string with key-value pairs.

2. Processing Data:

   • In the PHP file, use $_POST to retrieve the posted data.

3. Returning Response:

   • When the PHP file completes processing, it returns a response back to the JavaScript.

Example:

main_file.html:

<script>
  $(document).ready(function() {
    $('#myForm').submit(function(event) {
      event.preventDefault(); // Prevent page reload
      var data = $(this).serialize(); // Serialize form data

      $.ajax({
        type: "POST",
        url: "process_form.php",
        data: data,
        success: function(response) {
          // Handle the response from the PHP file
        }
      });
    });
  });
</script>

<form>

process_form.php:

<?php
  $name = $_POST['name']; // Get the posted name value

  // Process the data

  // Return a response
  echo "Name: $name";
?>

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