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sessions…

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Oct 13.2003

well i now have a log in script that grabs the correct pass and makes sure you have the correct pass etc…

but i wanna know what is the best way to do a log in…

should i use cookies… or there are ways in mySQL i think… could i also use like the session function with php?

i am very new to cookies and the session function

what is the best method do you think?

how would i go about coding it in?

thanks!
-chady

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PHP

16 Comments(s) ↴

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@pyroOct 13.2003 — I would probably go with sessions. See http://us3.php.net/session for more info.
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@chadypuauthorOct 13.2003 — so i would need to add in a session and have it start on log in... and then grab to see if the session is true on each "member only" page

correct?

is there a way i can store the sessions value in a variable... so i can go like

if ($userloggedin)

{

echo 'whatever';

}

thanks pyro
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@pyroOct 13.2003 — Well, you'd need to do it a bit differently than that, but it's close:

When thy log in, use something like this to set the session:

[code=php]session_start();
$_SESSION['loggedin'] = true;[/code]

And then, to check if they are logged in, you'd use this:

[code=php]session_start();
if (isset($_SESSION['loggedin'])) {
#user is logged in
}[/code]The main thing to remember is that you must start the session (with session_start()) before you can use it.
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@fyrestrtrOct 13.2003 — Read [url=http://www.zend.com/zend/tut/authentication.php] this tutorial[/url] which explains a good deal about authentication.
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@chadypuauthorOct 14.2003 — thanks again pyro ?

and ill look at that tutorial
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@pyroOct 14.2003 — Sure thing... ?
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@chadypuauthorOct 14.2003 — Warning: session_start(): Cannot send session cache limiter - headers already sent (output started at /home/chadypu/public_html/profile/login.php:10) in /home/chadypu/public_html/profile/login.php on line 49


i got that error

[b]session_start();[/b]

$_SESSION['loggedin'] = true;

the bold line is line 49 :-
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@pyroOct 14.2003 — Make sure you haven't written any content to the browser before you call session_start()
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@chadypuauthorOct 14.2003 — thanks again pyro ?

i tried it at the top of my php but not before my html header content

same goes for cookies... you must set the cookie at the top correct?
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@pyroOct 14.2003 — Yes, any header information must be set before output to the browser has been started (including sessions and cookies).
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@chadypuauthorOct 14.2003 — all headers except like redirect headers correct?

thanks again
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@pyroOct 14.2003 — Even redirect headers must be set before content is sent to the browser. With PHP 4, however, you can use [URL=http://us2.php.net/manual/en/function.ob-start.php]ob_start()[/URL] and [URL=http://us2.php.net/manual/en/function.ob-end-flush.php]ob_end_flush()[/URL] to get around it.
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@chadypuauthorOct 14.2003 — when setting the session how can i include the $uname variable

so on other pages i know what their username is...

how do i put that in the session?

and how could imake the session end... like if they wanted to log out?
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@pyroOct 14.2003 — To set the session, do something like this:

[code=php]$username = "foo";
session_start();
$_SESSION['username'] = $username;
[/code]

And, you use this to end a session:

[code=php]session_start();
session_unset();
session_destroy();[/code]
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@chadypuauthorOct 14.2003 — alright thanks
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@pyroOct 14.2003 — You are welcome... ?
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