# Header error **URL:** \ **Category:** Uncategorized\ **Created:** [August 5, 2007, 9:59am UTC](https://forum.kirupa.com/t/header-error/234725 "2007-08-05T09:59:14Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![heinlein](https://avatars.discourse-cdn.com/v4/letter/h/f17d59/32.png) [@heinlein](https://forum.kirupa.com/u/heinlein)\ **Post date:** [August 5, 2007, 9:59am UTC](https://forum.kirupa.com/t/header-error/234725/1 "2007-08-05T09:59:14Z")
hi, i’m new to php and i’m actually learning from a book so the code i wrote is basically from someone else but it seems that i have error when running it. here is the error: **Warning** : Cannot modify header information - headers already sent by (output started at C:\wamp\www\Forum\do\_addtopic.php:3) in **C:\wamp\www\Forum\do\_addtopic.php** on line **5** [//addtopic.php](https://addtopic.php) code ```auto Add a Topic

Add a Topic

Your E-Mail Address:

Topic Title:

Post Text:

``` //do\_addtopic.php code ```php The $topic_title topic has been created.

" ?> New Topic Added

New Topic Added

``` hope someone will tell me wat mistakes i hv made for this one. thanks