// Define constants for static messages define('ERROR_MESSAGE', 'An error occurred. Please try again later.'); define('SUCCESS_MESSAGE', 'Your request has been processed successfully.'); // Use constants to display messages echo ERROR_MESSAGE; // Outputs: An error occurred. Please try again later. echo SUCCESS_MESSAGE; // Outputs: Your request has been processed successfully.
// Define messages array $messages = [ 'error' => 'An error occurred. Please try again later.', 'success' => 'Your request has been processed successfully.' ]; // Use array to display messages echo $messages['error']; // Outputs: An error occurred. Please try again later. echo $messages['success']; // Outputs: Your request has been processed successfully.The package library used in this example is the PHP core library. However, there are also many third-party libraries available that provide additional functionality for working with static messages, such as the Symfony Messenger component or the Laravel Flash Messages package.