PHP SESSIONS what is most likely the problem here? - Computer Technical Help

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PHP SESSIONS what is most likely the problem here?

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03-26-2013 , 09:09 PM

OMGtuttlisa

grinder

Join Date: Mar 2013 Posts: 413

I'm making a home page in PHP and MySQL with a login function.

the user types in username and password and a $_SESSION variable is created, and now comes the problem. I can only call the session-variable once and then it dies, when I change page the session-variable is empty, it only lasts for a couple of seconds which to me is really weird.

I'm a noob at programming. any help is appreciated

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03-26-2013 , 10:10 PM

denks

Carpal \'Tunnel

Join Date: Nov 2007 Posts: 7,032

Are you by any chance overwriting it somewhere? So the first page appears but later int he script you overwrite or unset $_SESSION so the next page you visit no longer has the variable?

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03-26-2013 , 10:40 PM

well named

poorly undertitled

Join Date: Jun 2007 Posts: 78,077

You might need to call session_start() for each page

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but later int he script you overwrite or unset $_SESSION so the next page you visit no longer has the variable?

changing the reference of $_SESSION probably has weird effects since it's super global, but in any case variables aren't persistent across multiple page views so even if you did it the next request wouldn't know anything about it.

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03-26-2013 , 10:57 PM

denks

Carpal \'Tunnel

Join Date: Nov 2007 Posts: 7,032

it would if you did something like the following:
if ($_SESSION['blah'] == 'logged in') {// do stuff }
else { //show error that we are not logged in }

//do page stuff

$_SESSION['blah'] = null;

Now page shows all nicely, but next time we go to page suddenly the session variable we expect isn't there

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03-26-2013 , 11:20 PM

well named

poorly undertitled

Join Date: Jun 2007 Posts: 78,077

I thought you meant

$_SESSION = ...

nevermind

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03-27-2013 , 03:29 AM

OMGtuttlisa

grinder

Join Date: Mar 2013 Posts: 413

Quote:

Originally Posted by well named

You might need to call session_start() for each page

changing the reference of $_SESSION probably has weird effects since it's super global, but in any case variables aren't persistent across multiple page views so even if you did it the next request wouldn't know anything about it.

that might be the case, I'll try that out. I don't call session_start on every page just the login page

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03-28-2013 , 10:16 AM

jimmyhat1000

MSNL HU Champion 2008

Join Date: Aug 2006 Posts: 1,310

Quote:

Originally Posted by OMGtuttlisa

that might be the case, I'll try that out. I don't call session_start on every page just the login page

You need session_start(); on every page very first thing. Put it in a file and just include it at the top of every page. You can also include your function and config file includes in there to save including them separately on every page.

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04-24-2013 , 11:51 AM

OMGtuttlisa

grinder

Join Date: Mar 2013 Posts: 413

lol i worked out when I added
[PHP]session_start();[/PHP]
to the connect.php -file

as all of you saw immediately lol, now you must think I'm a total noOb!

thanks anyway guys!

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05-07-2013 , 01:32 AM

OMGtuttlisa

grinder

Join Date: Mar 2013 Posts: 413

works fine thank you guys. added it to the connect.php -file

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