COOKIE results in 'undefined index'

[Markus]

In the process of making a user registration page, and if a username and or email address is already in use i set a cookie then use header( ... to redirect the user back to the page with the form.
On the page with the form, i check to see if there is reason to echo the error (if isset $_GET['i']; .. )
And then echo the cookie out.
Hooooowever, it seems the cookie isn't being recognised or i'm just silly silly silly!
[php]
// setting the cookie
setcookie('Sign up_Error', "Both username and email address have been taken! Please try again", time() + 3600);
header("Locatio n: http://localhost/blog.mahcuz.com/?i");
[/php]

[php]
// retrieving the cookie
<?php
if(isset($_GET['i']))
{
$_error = $_COOKIE['Signup_Error'];
?>
<div id="error_signu p">
<?php
echo $_error;
?>
</div>
<?php
}
?>
[/php]
All this does is throw an error: undefined index: Signup_Error

If i am to cancel the header redirect and just echo the cookie out as soon as it is set, it works fine
[php]
// setting the cookie
setcookie('Sign up_Error', "Both username and email address have been taken! Please try again", time() + 3600);
echo $_COOKIE['Signup_Error'];
// header("Locatio n: http://localhost/blog.mahcuz.com/?i");
[/php]

Living up to my name.. markusn00b
;)

[harshmaul]

Hi,
I can't reacreate the exception your getting!
You could stick the $_COOKIE refernce in a if(IsSet()) thingy....

if(IsSet($_COOKIE['error_list'])) {
echo $_COOKIE['error_list'];
}

Or whatever.