Accessing $_COOKIE immediately after setcookie()

Question

I\'m trying to access a cookie\'s value (using $_COOKIE) immediately after calling the setcookie() function in PHP. When I do so, $_COOKIE[\

Answer 1

We can do this using AJAX calling.

If we want to create cookies on button click so first create a AJAX call for creating cookies then the success of first AJAX calling we can call another AJAX for getting the cookies.

    function saveCookie() {
            var base_url = $('#base_url').val();
            var url = base_url + '/index/cookie';
            $.ajax({
                'url': url,
                'type': 'POST',
                'success': function (data) {
                    if (data) {
                        var url = base_url + '/index/get_cookie';
                        $.ajax({
                            'url': url,
                            'type': 'POST',
                            'success': function (response) {
                                var container = $('#show');
                                if (response) {
                                    container.html(response);
                                }
                            }
                        });
                    }
                }
            });
        }

    <button type="button" onclick="saveCookie()">Save Cookie</button>
    <div id="show"></div>

Answer 2

Using ob_start() and ob_flush() you can send the cookie to client and retrieve it in the same run time. Try this:

ob_start();
setcookie('uname', $uname, time() + 60 * 30);
ob_flush();
echo "Cookie value: " . $_COOKIE['uname'];

Answer 3

I set a constant at the same time the cookie was created

define('CONSTANT', true);
return setcookie('cookiename', 'cookie value goes here', time() + 60 * 60 * 24 * 30, '/');

I can then immediately do something by:

if(isset($_COOKIE['cookiename']) || $_COOKIE['cookiename'] || defined('CONSTANT') && CONSTANT)