in php using ajax catch ajax data in other page code example

Example 1: ajax post example php

/* Get from elements values */
 var values = $(this).serialize();

 $.ajax({
        url: "test.php",
        type: "post",
        data: values ,
        success: function (response) {

           // You will get response from your PHP page (what you echo or print)
        },
        error: function(jqXHR, textStatus, errorThrown) {
           console.log(textStatus, errorThrown);
        }
    });

Example 2: ajax project using php and jquery

<?php
if (isset($_POST['username']) && $_POST['username'] && isset($_POST['password']) && $_POST['password']) {
    // do user authentication as per your requirements
    // ...
    // ...
    // based on successful authentication
    echo json_encode(array('success' => 1));
} else {
    echo json_encode(array('success' => 0));
}