lougout script

[singboy]

this is my logout script.

<?php
//start the session
session_start();

//check to make sure the session variable is registered
if(session_is_registered('username')){

//session variable is registered, the user is ready to logout
session_unset();
session_destroy();
}
else{
//the session variable isn't registered, the user shouldn't even be on this page
header( "Location: file:////FMTC/public/CMS/cms_template/index.htm" );

}
session_destroy();
?>

the problem i face here is after i login to the second page, when i try to logout, it will stop on some blank page . then i need to click back to the previous page and click on the logout again. tis time it only come to the login page again.
can somebody plz help me, thank you.

[sijis]

the possible reason you are getting a blank page is because of this:

if(session_is_registered('username')){ 

//session variable is registered, the user is ready to logout 
session_unset(); 
session_destroy(); 
} 

do you notice something? if the session is registed unset it and destroy, then what??? you aren't redirecting the user or anything else... that's why you get a blank page.

now, whne you go back a page and then return, you end up in the else condition of that statement and then you are redirected because of the header("Location: file...."); stuff you have.

in order for your code to work you'd have to do something like this:

<?php 
session_start(); 

if(session_is_registered('username')){ 
	session_unset(); 
	session_destroy(); 
	header( "Location: file:////location/of/logout/file.htm"); 
	exit();
} 
else{ 
	header( "Location: file:////FMTC/public/CMS/cms_template/index.htm");
	exit();
} 
?>

Enjoy.