Question

<?php
session_start();  
if(isset($_SESSION['views']))
    $_SESSION['views'] = $_SESSION['views']+ 1;
else
    $_SESSION['views'] = 1;

echo "views = ". $_SESSION['views']; 
?>

Is $_SESSION['views'] initialized as FALSE?

EDIT: I meant the third line of code:

if(isset($_SESSION['views']))

Answer 1

If I understand correctly, it’s like this: if the user has never been to your site, then you are starting a new session and $_SESSION['views'] will not be set (so you set it to 1). On the other hand if the user’s request comes with a session ID of a valid session, then the variable will be set to whatever it was last stored as.