Cannot modify header information - headers already sent

[soumadri]

i have two files

  1. access_user_class.php - for login management

  2. login.php - for login GUI (which includes my gui template from another file)

 

The include sequence in login.php is

      1> access_user_class.php

      2> template1_wobar.php

 

eg.

include("$_SERVER[DOCUMENT_ROOT]/includes/stripgpcslash.inc.php");

include("$_SERVER[DOCUMENT_ROOT]/classes/access_user/access_user_class.php");

include("$_SERVER[DOCUMENT_ROOT]/includes/validate_email.inc.php");

include("$_SERVER[DOCUMENT_ROOT]/includes/injection_attack.inc.php");

include("$_SERVER[DOCUMENT_ROOT]/includes/cleanvar.inc.php");

include("$_SERVER[DOCUMENT_ROOT]/template1_wobar.php");

 

 

 

now when login is successful i call a function from access_user_class.php, which inturn sets the http header location: to my home page.

e.g.

if ($goto_page) {

header("Location: ".$next_page);

exit;

}

here i am getting the following warning, bcoz of which my home page is not rendering

Warning: Cannot modify header information - headers already sent by (output started at C:\wamp\www\template1_wobar.php: in C:\wamp\www\classes\access_user\access_user_class.php on line 111

 

 

[ToonMariner]

ob_start() & ob_end_flush(); will help short term - better (IMO) to code with the need for them though.

[soumadri]

hey thnx for ur help. can u plz elaborate wht ob_start() is? what is IMO? and where and how to put this piece of code.

[ToonMariner]

http://uk.php.net/manual/en/function.ob-start.php

[soumadri]

i am still getting the same error. can u plz suggest some other method?

[miracle_potential]

This error means your outputting before your header has been set. Set your header before you output and use the ob_flush function ToonMariner said to use.

 

Should be dandy after that

[discomatt]

Did you even read the forum rules, posting guidelines... or ANY stickies for that matter?

[conker87]

Oh and IMO means In my opinion

[haku]

There is a topic with this exact same title every week or so. A quick search would have found probably 50 threads or more exactly like it.