What are the best practices for defining and using constant paths in PHP scripts?

When working with PHP scripts, it's essential to define constant paths for better organization and maintainability. This helps avoid hardcoding paths throughout the codebase, making it easier to update paths in the future. To define constant paths in PHP, use the `define()` function to set the path as a constant variable and then use this constant variable throughout the script. 

// Define constant paths
define('ROOT_PATH', '/var/www/html/');
define('INCLUDES_PATH', ROOT_PATH . 'includes/');
define('CONFIG_PATH', INCLUDES_PATH . 'config/');

// Example usage of constant paths
require_once(CONFIG_PATH . 'database.php');

Keywords

define constant paths PHP scripts file paths file_exists

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