[zoliky]

I have the following code:

PHP Code:

if ($_GET['do'] == 'logout') {



session_start();

$_SESSION['username'] = "";

$_SESSION['uid'] = "";

$_SESSION['foldername'] = "";

session_destroy();

 

setcookie(session_name(), '', '', "/");

} 

Why I get this error ? :

Code:

Warning: setcookie() expects parameter 3 to be long, string given in /home2/devfirst/public_html/login.php on line 19

Warning: session_start(): Cannot send session cache limiter - headers already sent (output started at /home2/devfirst/public_html/login.php:19) in /home2/devfirst/public_html/login.php on line 65

Warning: Cannot modify header information - headers already sent by (output started at /home2/devfirst/public_html/login.php:19) in /home2/devfirst/public_html/login.php on line 66

The cookie is created with following line :

PHP Code:

setcookie(session_name(), session_id(), time()+900, "/" ); 

[UnrealEd]

Warning: setcookie() expects parameter 3 to be long, string given in /home2/devfirst/public_html/login.php on line 19

Warning: session_start(): Cannot send session cache limiter - headers already sent (output started at /home2/devfirst/public_html/login.php:19) in /home2/devfirst/public_html/login.php on line 65

Warning: Cannot modify header information - headers already sent by (output started at /home2/devfirst/public_html/login.php:19) in /home2/devfirst/public_html/login.php on line 66

the first error is because you entered a string when there should be a number inserted. this is on this line:

PHP Code:

setcookie(session_name(), '', '', "/"); 

if you check the php manual, you'll see what needs to be inserted.

the second error means that you allready displayed something before starting the sessions. this may not according to php manual

the third error is about the same as the second: you try to send a user to a different page using the header function. you may not display anything before using the header function. nothing may be outputted, not even html on a differetn page

Greetz,
Unrealed