wp-includes/rest-api/class-wp-rest-request.php:349Retrieves the parameter priority order.
string[]One hook fires while WP_REST_Request::get_parameter_order() runs, in this order:
Filters the parameter priority order for a REST API request.
protected function get_parameter_order() { $order = array(); if ( $this->is_json_content_type() ) { $order[] = 'JSON'; } $this->parse_json_params(); // Ensure we parse the body data. $body = $this->get_body(); if ( 'POST' !== $this->method && ! empty( $body ) ) { $this->parse_body_params(); } $accepts_body_data = array( 'POST', 'PUT', 'PATCH', 'DELETE' ); if ( in_array( $this->method, $accepts_body_data, true ) ) { $order[] = 'POST'; } $order[] = 'GET'; $order[] = 'URL'; $order[] = 'defaults'; /** * Filters the parameter priority order for a REST API request. * * The order affects which parameters are checked when using WP_REST_Request::get_param() * and family. This acts similarly to PHP's `request_order` setting. * * @since 4.4.0 * * @param string[] $order Array of types to check, in order of priority. * @param WP_REST_Request $request The request object. */ return apply_filters( 'rest_request_parameter_order', $order, $this ); }Introduced in 4.4.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/rest-api/class-wp-rest-request.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.