[pagey]

Hi there,

I need to know something regarding sessions in PHP. Can't seem to find the answer through Google.

I have a login page, and I'd like to have a little function that carries the username throughout the use of the website.

Something like: You are logged in as (username)..

You get my drift.

Any help is appreciated!

[datahound]

PHP Tutorial - Session

here's a start, for more search google by php session variables.

[pagey]

I'm interested more specifically in how to post information, which doesn't seem to be exaplined in that link, unless I'm misunderstanding the fundementals?

[gk]

Originally Posted by pagey

...unless I'm misunderstanding the fundamentals?

How do you differentiate users in your script/system? Probably by a user name or other form of id. (if you can't answer this or haven't come this far look for a login tutorial)

Now store that information in a session variable/cookie (yummie). bang you're done.

[pgo]

Usually when someone logs in successfully, you set a valid $_SESSION for them.

Let's say $_SESSION['username']. Then on subsequent pages you check if they're logged in using that:

PHP Code:

session_start();

if (isset($_SESSION['username']) {
  echo "You are logged in as".$_SESSION['username'];
} else {
  echo "You are not logged in.";
} 


Remember, you need to use session_start(); in each PHP file that uses sessions.

[R1gM]

to be honest if you are creating a login system you should really have a file for functions and config especially if you are using classes so just include session start in that or make a more complex one that will check if a session exists and if not starts it again. More complex systems will log info and session ids in the db.

Look at some login tutorials etc and you should get it pretty soon. Session variables work a lot like POST GET or standard variables as far as printing out comes but you need to understand how to set them, secure them and make them persistant.

[mx]

When I was sussing sessions, I created a super basic submit/retrieve and kill to check it all worked. Take a look. There's a zip with the php source files. Help yourself.