I have 3 questions about login sessions

[AdRock]

I am very new to using sessions so i don't know if it's possible and how to do it.

1st question.
When a user logins to the site, how do i display their name much like in here where you see hello username?
I have a session called $_SESSION['username']

2nd question

I obviously have a link to login.  When the user successfully logs in is there a way of changing the link to logout so there is no option for the user to login again?

3rd question
How would i go about having a 'remember me' so the user doesn't have to login next time they visit the site?

Many thanks for all your help

[onlyican]

1)
You can echo the session
echo $_SESSION["username"];

2) again using the above var and an if statement

if($_SESSION["username"]){
echo "logout link";
}else{
echo "log in link";
}

3)
Use cookies
and set the field data, then on log in page, call the cookie, if its there complete the form with the info in the cookie

[wildteen88]

[quote]2) again using the above var and an if statement

if($_SESSION["username"]){
echo "logout link";
}else{
echo "log in link";
}
[/quote]
I'd use if isset like so:
[code=php:0]if(isset($_SESSION["username"])) {
    echo "logout link";
} else {
  echo "log in link";
}[/code]