WP_REST_Posts_Controller::check_status( string $status, WP_REST_Request $request, string $param )

Source

File: wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php

public function check_status( $status, $request, $param ) {
		if ( $request['id'] ) {
			$post = $this->get_post( $request['id'] );

			if ( ! is_wp_error( $post ) && $post->post_status === $status ) {
				return true;
			}
		}

		$args = $request->get_attributes()['args'][ $param ];

		return rest_validate_value_from_schema( $status, $args, $param );
	}