Are there best practices for maintaining and updating text content within PHP files to avoid confusion or errors?

When maintaining and updating text content within PHP files, it is best practice to separate the text content from the code by storing it in variables or constants. This helps avoid confusion and errors, as well as makes it easier to update the text content without having to sift through the code. By keeping text content separate, it also allows for easier localization and translation of the content.

<?php
// Define text content in variables or constants
define('WELCOME_MESSAGE', 'Welcome to our website!');
define('ERROR_MESSAGE', 'An error occurred. Please try again later.');

// Example usage
echo WELCOME_MESSAGE;
echo ERROR_MESSAGE;
?>