What are best practices for installing PHP scripts on different servers?

When installing PHP scripts on different servers, it is important to ensure compatibility with the server environment. This includes checking PHP version, required extensions, and server configurations. Best practices include using PHP composer for managing dependencies, setting up error handling, and securing sensitive information.

// Example of using PHP composer to manage dependencies
// Install Composer: https://getcomposer.org/download/
// Create a composer.json file with required dependencies
// Run 'composer install' to install dependencies

// Example of setting up error handling
error_reporting(E_ALL);
ini_set('display_errors', 1);

// Example of securing sensitive information
define('DB_HOST', 'localhost');
define('DB_USER', 'username');
define('DB_PASS', 'password');
define('DB_NAME', 'database_name');