PHP Superglobals
Several predefined variables in PHP are "superglobals", which they are available in all scopes throughout a script. There is no need to do global $variable; to access them within functions or methods.
These superglobal variables are:
List of Superglobal Variables
| Variable | Description |
|---|---|
| $GLOBALS | References all variables available in global scope |
| $_SERVER | Server and execution environment information |
| $_GET | HTTP GET variables |
| $_POST | HTTP POST variables |
| $_FILES | HTTP File Upload variables |
| $_REQUEST | HTTP Request variables |
| $_SESSION | Session variables |
| $_ENV | Environment variables |
| $_COOKIE | HTTP Cookies |
❮ PHP - Predefined Variables
