HTTP Method
An HTTP method, also called an HTTP verb, defines the intended action of an HTTP request. The most common methods are GET, POST, PUT, PATCH, DELETE, HEAD, and OPTIONS.
Methods differ in their safety and idempotency guarantees. A method is safe if it does not modify server state, such as GET, HEAD, OPTIONS. A method is idempotent if repeating it produces the same result as a single call GET, HEAD, PUT, DELETE. POST and PATCH are neither safe nor guaranteed idempotent by the specification, which is why APIs that use them for state-changing operations often implement explicit idempotency mechanisms such as idempotency keys.
The request method is available via $_SERVER['REQUEST_METHOD'] or through framework helpers.
<?php
$method = $_SERVER['REQUEST_METHOD']; // GET, POST, PUT, PATCH, DELETE ...
?>