# Cannot modify header information

**URL:** <https://forum.kirupa.com/t/cannot-modify-header-information/123415>\
**Category:** Uncategorized\
**Created:** [September 23, 2004, 11:51am UTC](https://forum.kirupa.com/t/cannot-modify-header-information/123415 "2004-09-23T11:51:21Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![ofi](https://avatars.discourse-cdn.com/v4/letter/o/df788c/32.png) [@ofi](https://forum.kirupa.com/u/ofi)\
**Post date:** [September 23, 2004, 11:51am UTC](https://forum.kirupa.com/t/cannot-modify-header-information/123415/1 "2004-09-23T11:51:21Z")

</div>

Hi  
I am setting up guest book, and i got small problem, see link  
[http://www.koddinn.com/prufa/bok/guest\_book.php](http://www.koddinn.com/prufa/bok/guest_book.php)

Code  
[http://www.koddinn.com/prufa/bok/guest\_book.phps](http://www.koddinn.com/prufa/bok/guest_book.phps)

when i hit enter, i get this error  
**Warning** : Cannot modify header information - headers already sent by (output started at /home/koddinn/public\_html/prufa/bok/guest\_book.php:7) in **/home/koddinn/public\_html/prufa/bok/guest\_book.php** on line **66**

**Line 66 [size=2]header(“location: $bodyname”);[/size]**

**[size=2]maybe not big problem, any1 help me**  
**[/size]**