Have you ever wondered how WordPress actually works behind the scenes? For most users, it seems simple because you type a URL and a page loads in few seconds, but there is a lot that happens behind the scenes.
1. Load wp-config.php File
The wp-config.php is the WordPress configuration file. It sets global variables for a WordPress site and contains your WordPress database information. This is the first file WordPress loads for obvious reasons.
2. Setup Default Constants
After loading wp-config.php file, WordPress will move on to set default constants. This includes information like default WordPress upload location, maximum file sizes, and other default constants set in wp-config.php file.