How can the Personal Number be sent in the background when using Autocomplete in PHP?

When using Autocomplete in PHP, the Personal Number can be sent in the background by using AJAX to send a request to the server with the Personal Number as a parameter. This allows the server to process the Personal Number without the user having to manually submit a form.

// HTML form with Autocomplete input field for Personal Number
<form>
  <input type="text" id="personal_number" name="personal_number" autocomplete="off">
</form>

// JavaScript code to send Personal Number in the background
<script>
  $(document).ready(function(){
    $('#personal_number').autocomplete({
      source: function(request, response) {
        $.ajax({
          url: 'process_personal_number.php',
          type: 'GET',
          data: { personal_number: request.term },
          success: function(data) {
            response(data);
          }
        });
      }
    });
  });
</script>

// PHP code in process_personal_number.php to handle the Personal Number
<?php
if(isset($_GET['personal_number'])){
  // Process the Personal Number here
  $personal_number = $_GET['personal_number'];
  // Do something with the Personal Number
}
?>