How can debugging techniques like error_reporting and var_dump be used to troubleshoot issues with session variables not being passed correctly in PHP?

Session variables not being passed correctly in PHP can be troubleshooted by using debugging techniques like error_reporting to display any errors related to session handling and var_dump to inspect the contents of the session variables. By enabling error_reporting and using var_dump to check the values of session variables, you can identify any issues with session initialization, setting, or retrieval. 

<?php
// Enable error reporting to display any session-related errors
error_reporting(E_ALL);

// Start the session
session_start();

// Set session variables
$_SESSION['username'] = 'john_doe';
$_SESSION['email'] = 'john.doe@example.com';

// Use var_dump to inspect the contents of session variables
var_dump($_SESSION);
?>

Keywords

debugging error_reporting var_dump session variables troubleshooting

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