Sessions Again

[Arnold Shore]

In Win32, php4: (I don't have access to the php.ini file.)

With 'session_start()', how do I avoid the complaint "PHP Notice: A session
had already been started" ?
Without 'session_start()', I get the "Undefined variable: _SESSION "
complaint.

Any hope? (I'll be happy simply to suppress the error message, although I AM
trying to understand what's behind it.).

Thanks, all.

AS

[Janwillem Borleffs]

Arnold Shore wrote:

With 'session_start()', how do I avoid the complaint "PHP Notice: A
session had already been started" ?
Normally this happens when the session.auto_start directive has been enabled
in the php.ini file while calling session_start().
Without 'session_start()', I get the "Undefined variable: _SESSION "
complaint.

This should not happen when you do a simple "print_r($_SESSION)" on top of
your script and sounds like a configuration problem. Ask your administrator
about this.
Any hope? (I'll be happy simply to suppress the error message,
although I AM trying to understand what's behind it.).

Prepending an at-sign will surpress the notice:

@session_start();
JW

[Alvaro G. Vicario]

*** Arnold Shore escribió/wrote (Sat, 10 Dec 2005 16:36:10 -0500):

With 'session_start()', how do I avoid the complaint "PHP Notice: A session
had already been started" ?
Without 'session_start()', I get the "Undefined variable: _SESSION "
complaint.

Any hope? (I'll be happy simply to suppress the error message, although I AM
trying to understand what's behind it.).

Try this on top of your code:

ini_set('session.auto_start', '0');

I haven't tested but may do the trick. In any case, it'd be interesting to
see the actual code that claims about $_SESSION being undefined, because
when you start a session twice the exact notice is:

A session had already been started - ignoring session_start()

"Ignoring" sounds like, well, no point in using that code :-?

--
-+ Álvaro G. Vicario - Burgos, Spain
++ http://bits.demogracia.com es mi sitio para programadores web
+- http://www.demogracia.com es mi web de humor libre de cloro
--

[Mara Guida]

Arnold Shore wrote:

With 'session_start()', how do I avoid the complaint "PHP Notice: A session
had already been started" ?
Without 'session_start()', I get the "Undefined variable: _SESSION "
complaint.

<snip>

Maybe you're trying to do session_start() more than once.

Try this:
<?php
echo 'ini_get('session.auto_start') is ',
ini_get('session.auto_start'), "<br>\n";
echo 'before session_start() session_id() returns ', session_id(),
"<br>\n";

// You may want to replace your session_start()s with this too
if (!session_id()) session_start();

echo 'after session_start() session_id() returns ', session_id(),
"<br>\n";
?>