PHP Session question...

[dysfunct]

Hey all.
Trying to get sessions to work on my app. The issue is this. When the
main page loads I check for a session variable uname to see if the
user is logged in and display a "hello, username" message, or
otherwise use "guest." Pretty straightforward . Then I have a login
form that uses AJAX calls to log the user in. If the login info is
correct, I set $_SESSION['uname'] to the username. However, if I then
refresh the main page, the session info is gone. Here's a glimpse at
what's going down....

From index.php:
<?php
session_start() ;

?>
....
<span>Hello, <?php if(isset($_SESS ION['uname'])){
echo $_SESSION['uname'];
}
else {
echo 'Guest';
}?></span>

From login.php:
<?php

$dbh=mysql_conn ect ...

...


//do this on login SUCCESS:
echo 'Login Successful';
$_SESSION['uname'] = $_POST['un'];
};


?>


I can't use session_start() in login.php; it gives me an error saying
http headers have already been sent.

Any suggestions?

[Jerry Stuckle]

Re: PHP Session question...

dysfunct wrote:

Hey all.
Trying to get sessions to work on my app. The issue is this. When the
main page loads I check for a session variable uname to see if the
user is logged in and display a "hello, username" message, or
otherwise use "guest." Pretty straightforward . Then I have a login
form that uses AJAX calls to log the user in. If the login info is
correct, I set $_SESSION['uname'] to the username. However, if I then
refresh the main page, the session info is gone. Here's a glimpse at
what's going down....
>
From index.php:
<?php
session_start() ;
>
?>
...
<span>Hello, <?php if(isset($_SESS ION['uname'])){
echo $_SESSION['uname'];
}
else {
echo 'Guest';
}?></span>
>
From login.php:
<?php
>
$dbh=mysql_conn ect ...
>
...
>
>
//do this on login SUCCESS:
echo 'Login Successful';
$_SESSION['uname'] = $_POST['un'];
};
>
>
?>
>
>
I can't use session_start() in login.php; it gives me an error saying
http headers have already been sent.
>
Any suggestions?
>

You need session_start() at the beginning of EVERY page which uses sessions.

--
=============== ===
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
jstucklex@attgl obal.net
=============== ===

[Rik Wasmus]

Re: PHP Session question...

On Sat, 12 Apr 2008 03:48:21 +0200, Jerry Stuckle
<jstucklex@attg lobal.netwrote:

> I can't use session_start() in login.php; it gives me an error saying
>http headers have already been sent.
> Any suggestions?

You need session_start() at the beginning of EVERY page which uses
sessions.

Indeed, and you should be able to start a session on every request where
it's needed BEFORE generating any output. The error message will tell you
where the output started, get your session_start() before that.
--
Rik Wasmus