Ajax to PHP on the same page

Question

I’m trying to send variables to the same page that makes the AJAX call.

I receive successful result only if I separate the PHP script (e.g. process.php

Answer 1

add die(); function AND use $_SERVER['HTTP_X_REQUESTED_WITH'] which detect ajax request. alos put serialize() out side of ajax function to get data

   var data = '';
   $(function() { 
    $('form').submit(function(e) { 
        e.preventDefault();
        data = $(this).serialize();
        $.ajax({
            type        : 'POST',
            url         : 'index.php',
            data        :  data,
            dataType    : 'json',
            encode      : true
        })
        .done(function(data) {
            $('#result').html(data);    
        })
    });
});