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September 9th, 2003, 05:23 PM

Bruski

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header error

ive created a login script with 4 different levels...when you login it checks the users name against the databse and determines what level they are.... after i press login i get this error message then i get the info im supposed to be getting

Warning: Cannot modify header information - headers already sent by (output started at /home2/bruski/public_html/index.php:4) in /home2/bruski/public_html/auth.php on line 23

Warning: Cannot modify header information - headers already sent by (output started at /home2/bruski/public_html/index.php:4) in /home2/bruski/public_html/auth.php on line 24

lines 24 and 25 are as followed:

PHP Code:


		
			
 setcookie('username', $_POST['username'],  (time()+2592000), '/', '', 0);

        setcookie('auth_level', $_POST['auth_level'], (time()+2592000),  '/', '', 0);

thx...is it the cookie header thats being sent out or something else?

September 9th, 2003, 06:03 PM

_rainbow_

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Location: Lj, Slovenia

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Definitly something else. Obviously something has already sent headers on line 4 (it staits so in your error message). So check the script if you are outputing anything that might cause the headers to be sent (any echo, print, even a blank space will mess things up for you). Check and if you don't find the problem, post up to the 4th line here.

Another possibility would be to use ob_start() and ob_end_flush().

Hope it helps.

September 9th, 2003, 06:09 PM

Bruski

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4th line of the index? if thats the case here it is

<style type="text/css" title="currentStyle">
@import "./style.css";
</style>

September 10th, 2003, 05:17 AM

_rainbow_

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Quote from the manual for setcookie():

Quote:

setcookie() defines a cookie to be sent along with the rest of the HTTP headers. Like other headers, cookies must be sent before any output from your script (this is a protocol restriction). This requires that you place calls to this function prior to any output, including <html> and <head> tags as well as any whitespace.

In PHP 4, you can use output buffering to send output prior to the call of this function, with the overhead of all of your output to the browser being buffered in the server until you send it. You can do this by calling ob_start() and ob_end_flush() in your script, or setting the output_buffering configuration directive on in your php.ini or server configuration files.

You cannot output anything before you call setcookie(). Put anything that has to do with cookies before that 4th line. That should do the trick. Otherwise check the menitioned functions to work around this problem (ob_start() & ob_end_flush()).

Last edited by _rainbow_ : September 10th, 2003 at 05:45 AM.

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