WP_REST_Request::add_header()
Appends a header value for the given header.
Appends a header value for the given header.
Canonicalizes the header name.
Retrieves the attributes for the request.
Retrieves the request body content.
Retrieves parameters from the body.
Retrieves the content-type of the request.
Retrieves the default parameters.
Retrieves multipart file parameters from the body.
Retrieves the given header from the request.
Retrieves header values from the request.