How does the configuration option register_globals affect PHP session handling?

When the register_globals option is enabled in PHP, it can pose a security risk by automatically creating global variables from user input. This can lead to potential vulnerabilities, especially when handling session data. To mitigate this risk, it is recommended to disable the register_globals option in the PHP configuration.

// Disable register_globals in PHP configuration
// php.ini or .htaccess file
// This code snippet should be added to the php.ini file or .htaccess file
// to disable the register_globals option

// php.ini
register_globals = Off;

// .htaccess
php_flag register_globals off;