Starting a PHP Session
Before you can store user information in your PHP session, you must first start up the session.
Note: The session_start() function must appear BEFORE the <html> tag:
<?php session_start(); ?>
<html>
<body>
</body>
</html>
Note: The session_start() function must appear BEFORE the <html> tag:
<?php session_start(); ?>
<html>
<body>
</body>
</html>
Storing a Session Variable
The correct way to store and retrieve session variables is to use the PHP $_SESSION variable:
<?php
session_start();
// store session data
$_SESSION['views']=1;
?>
<html>
<body>
<?php
session_start();
// store session data
$_SESSION['views']=1;
?>
<html>
<body>
Echo a Session Variable
<?php
//retrieve session data
echo "Pageviews=". $_SESSION['views'];
?>
</body>
</html>
Output:
Pageviews=1
//retrieve session data
echo "Pageviews=". $_SESSION['views'];
?>
</body>
</html>
Output:
Pageviews=1
Destroying a Session
The unset() function is used to free the specified session variable:
<?php
unset($_SESSION['views']);
?>
You can also completely destroy the session by calling the session_destroy() function:
<?php
session_destroy();
?>
Note: session_destroy() will reset your session and you will lose all your stored session data.
<?php
unset($_SESSION['views']);
?>
You can also completely destroy the session by calling the session_destroy() function:
<?php
session_destroy();
?>
Note: session_destroy() will reset your session and you will lose all your stored session data.
