PHP setcookie(); problems

I got some problems with the setcookie(); On some browsers the cookie isn't set, or when it is set it can't be removed.

the command i use to set the cookies:
$expire = time() + 60*60*24*365;
setcookie("UserId", $login[1], $expire, "/", $HTTP_HOST,0);

or remove them:
setcookie("UserId", "", time()-3600, "/", $HTTP_HOST,0);

What is the problem? Any cookie experts in da house?

I think cookies are the worst things in PHP :/
Anyway: your code should be working fine.. Are you printing some date in PHP/HTML/Whatever before you do the cookies?

The code starts with php no spaces or anything in frond of them.. This problem i got since php 4. Php3 was doing cookies very nicely, but all the problems started with PHP4 that some cookies aren't set that well... If you maybe allready noticed, a lot of things on this website work with cookies...

Hmmm... And there are no errors on screen?
You don't print _anything_ with PHP before you set the cookies? (so not an 'echo', 'print', 'header', etc command)

I know, if you allready send text or even a space, you get a error from PHP. But the problem is that on some computers the cookies are set and can´t be removed anymore.. and on other computer work perfectly.. i think this is a bug of php. Not the scripting... So maybe i done something wrong in my setcookie(); ...

I read something in a comment to the setcookie() on php.com which said the problem is with the browser reading the site - not the script itself. there was an example script which could tell if the client thought the cookie were set or not, but it did not give a solution just told the client that it should install another browser.

Sorry to be so diffuse but I don't feel like finding it again right now.

Hmm.. i know this problem is only with 4 or less browsers. But the problems is with IE 6 and IE 5, got no reports of other browsers (mozilla, opera)

Maybe a 'wrong' configged computer?
I don't know if this is possible, but what if the user has no rights to remove files, then a site like this also can't delete files..

Well or simply have messed their cookies-settings up in IE's setup

i duno much about php but someone told me to be carefull about other sites pverwriting mine´s cookies

so i choosed a weird name for it so it would nt be overwrited
cheers

Hmm, I don't think that really happens. 'Cause I don't know why someone wants to overwrite cookies..

cookies mjam but i dont like this cookies it fils your hard drive with it