What steps can be taken to troubleshoot session-related problems in PHP?

Session-related problems in PHP can be troubleshooted by checking if the session is properly started, ensuring session variables are set and accessed correctly, and verifying that session data is being stored and retrieved as expected. Additionally, checking for any errors in session configuration settings or server-side limitations can help resolve session-related issues. 

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

// Set session variables
$_SESSION['username'] = 'example_user';

// Access session variables
echo $_SESSION['username'];

// Store and retrieve session data
$_SESSION['user_id'] = 123;
$user_id = $_SESSION['user_id'];

// Check for session errors or limitations
if (isset($_SESSION['username'])) {
    echo 'Session is active';
} else {
    echo 'Session is not active';
}
?>

Keywords

session_start $_SESSION session_destroy session_regenerate_id session_set_save_handler

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