Is it possible to define constants in PHP scripts to improve code readability and maintainability?

Defining constants in PHP scripts can improve code readability and maintainability by giving meaningful names to values that are used throughout the script. Constants can help avoid magic numbers or strings scattered throughout the code, making it easier to understand and modify in the future. 

<?php

define('MAX_USERS', 10);
define('DEFAULT_LANGUAGE', 'en');

// Usage of constants in the script
echo "The maximum number of users allowed is: " . MAX_USERS;
echo "The default language is: " . DEFAULT_LANGUAGE;

?>

Keywords

PHP constants code readability maintainability define

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