Config.php Guide

When you install a PHP application—whether it is a simple custom script, a massive e-commerce platform like Magento, or a forum like phpBB—you must tell the software how to connect to your database and which settings to use. The config.php file bridges the gap between your application and your hosting environment. It answers essential questions for the software, such as: What is the name of the database? What is the username and password to access it? Where are the files located?

Because config.php contains your database credentials and API tokens, protecting it from exposure is a primary security priority. config.php

: Prevent malicious web clients from executing the script directly over HTTP. Insert an execution blocker at the very top of your configuration code: When you install a PHP application—whether it is

<?php // config.php return [ 'app' => [ 'name' => 'My Awesome App', 'version' => '2.1.0', 'timezone' => 'UTC', 'debug' => false, ], 'database' => [ 'default' => 'mysql', 'connections' => [ 'mysql' => [ 'host' => '127.0.0.1', 'port' => 3306, 'database' => 'app_db', 'username' => 'app_user', 'password' => 'change_me', 'charset' => 'utf8mb4', ], ], ], 'services' => [ 'mailgun' => [ 'domain' => 'mg.example.com', 'secret' => 'key-abc123', ], 'stripe' => [ 'publishable_key' => 'pk_test_...', 'secret_key' => 'sk_test_...', ], ], ]; What is the username and password to access it

For even better performance, you can implement:

<?php // Any other page (e.g., index.php, functions.php)