$_SESSION["username"] Doesn't Work On First Attempt

[matthewcb]

I have a PHP login script that takes a u/n and p/w and checks it against a MySQL database. The first time I log in it validates, sets the session and sends me on to the index.php where I have validated that the session variable ($_SESSION["username"]) is indeed set. When I load another page it checks for the session variable and magically it's gone and I'm redirected to login. When I re-login using the exact same process, u/n and p/w it validates sends me to the index.php page and then no matter where I go, I stay logged in. Same pages different results. I am making sure that session_start is called before checking for the variables. I also just moved to an Apache web server with Ubuntu 10.4 and PHP5. I'm thinking it's a php.ini issue but I'm hoping someone knows for sure. Thanks. -matt

[wildteen88]

What code are you using to login the user. And what code are you using check if a user is logged in?

[AyKay47]

What code are you using to login the user. And what code are you using check if a user is logged in?

[WebStyles]

if I had to guess, without seeing your code, i'd say that the second file is missing session_start() at the top, so it does not find the session variable.