How can PHP sessions be utilized to store and retrieve data between different page requests?

PHP sessions can be utilized to store and retrieve data between different page requests by starting a session using session_start() at the beginning of each PHP script where you want to access session data. You can then store data in the $_SESSION superglobal array using keys and values, which will persist across different page requests until the session is destroyed. 

<?php
// Start the session
session_start();

// Store data in the session
$_SESSION['username'] = 'JohnDoe';

// Retrieve data from the session
$username = $_SESSION['username'];

// Output the retrieved data
echo $username;
?>

Keywords

PHP sessions data storage page requests session variables session management

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