Question

I have a folder test in my localhost.
In file test/cookie/a.php:

 <?php setcookie('email','[e-mail]',time()+3600);?>

In file test/cookie/b.php

<?php echo $_COOKIE['email'] ?>

A file name test/x.php, I write code

<?php
echo $_COOKIE['email'];
?>

first, I run file a.php, after that I run b.php, and x.php. But only file a.php display [e-mail], file x.php show error:

Notice: Undefined index: email in D:\xampp\htdocs\test\x.php on line 2.

Any idea?

Answer 1

User the form optional path paramter for set cookie '/' to set the cookie for whole domain.

<?php setcookie('email','[e-mail]',time()+3600,"/");?>

Now you will have email in other files too. Check documentation