Why Doesn't $_COOKIE Reflect `setcookie()` Immediately, and How Can I Access It Instantly?

Accessing Cookie Value After setcookie() Invocation

When you attempt to access a cookie's value using $_COOKIE immediately after calling the setcookie() function, it may appear as if $_COOKIE['uname'] is not set. This occurs because cookies are not immediately available after being set.

The reason for this is that the cookie isn't set until the response is sent back to the client. PHP doesn't have access to the cookie until the next request is made by the client.

Accessing the Cookie Immediately

To circumvent this issue, you can manually set the cookie value in $_COOKIE after calling setcookie(). This allows you to access the cookie value immediately within the same script:

setcookie('uname', $uname, time() + 60 * 30);
$_COOKIE['uname'] = $uname;

By setting the cookie both in the browser and manualmente in $_COOKIE, you can access its value promptly after setting it using setcookie().

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