如何检查用户登录？

Question

So, when I add if(isset($_SESSION["login"])) { header("Location: login.php"); } if(isset($_SESSION["login"])) { header("Location: login.php"); } I'm wondering how do I check if a user is logged in on all the other pages? I guess I use session_start(); but what is this $_SESSION["login"] used for? I'm talking about the ["login"] ?

Answer 1

"login" is a session variable. In variable declaration part on session , you are going to assign something in to that. Without that part, I can't correctly say what's it for. Maybe it's the username you are going to assign. Or maybe status like "1" or "0" to identify if someone logged in. Like "1" to logged in, "0" to logout. Like I said without session declaration part, I can't say. Hope this helps