How Can I get a Session Id or username in php?

Question

I have a website where users can log in. I have tried:

and When users login I set their session as

Answer 1

Did you start the session before using it?

So to set it:

And to retrieve it on another page do:

EDIT

Some more information about how to create a loginform.. You say you tried setting $_SESSION['user'] but that this didn't work.

So just make sure that you actually did a session_start(); before that. If you did, everything should work. Unless you assign an empty variable to the session. So doublecheck that the variable you assign actually contains a value. Like:

In the tutorial you linked me to they are doing:

$_SESSION[user]=$_GET[userlogin];

This means they are assigning a value they got from their loginform that they create here:

function loginform() {
   print "please enter your login information to proceed with our site";
   print ("
username
password
");
   print "";    
   print "
register now!
";    
} 

There you see . But there is no

tag around this form.. So this won't properly post. So what you should do is the following:

   Username: 
   Password: 
      

This form will post the form back to index.php with userlogin and password as $_POST variables.

In your index.php you can then do:

I can't make it much clearer without writing the entire code for you. So I hope this helps you.