WordPress at a glance
function is not described

WP_REST_Request::get_body() public WP 4.4.0

Retrieves the request body content.

It's a method of the class: WP_REST_Request{}

No Hooks.

Return

String. Binary data from the request body.

Usage

$WP_REST_Request = new WP_REST_Request();
$WP_REST_Request->get_body();

Changelog

Since 4.4.0 Introduced.

Code of WP_REST_Request::get_body() WP 5.5.1

<?php
public function get_body() {
	return $this->body;
}