return string
	 */
	public function get_request_uri_base() {
		$request_uri = $this->get_raw_request_uri();

		if ( ! $request_uri ) {
			return '';
		}

		$request_uri = explode( '?', $request_uri );

		return reset( $request_uri );
	}

	/**
	 * Get the request URI. The query string is sorted and some parameters are removed.
	 *
	 * @since  3.3
	 * @access public
	 * @author Grégory Viguier
	 *
	 * @return string
	 */
	public function get_clean_request_uri() {
		$request_uri = $this->get_request_uri_base();

		if ( ! $request_uri ) {
			return '';
		}

		$query_string = $this->get_query_string();

		if ( ! $query_string ) {
			return $request_uri;
		}

		return $request_uri . '?' . $query_string;
	}

	/**
	 * Get the request method.
	 *
	 * @since  3.3
	 * @access public
	 * @author Grégory Viguier
	 *
	 * @return string
	 */
	public function get_request_method() {
		if ( '' === $this->config->get_server_input( 'REQUEST_METHOD', '' ) ) {
			return '';
		}

		return strtoupper( $this->config->get_server_input( 'REQUEST_METHOD' ) );
	}

	/** ----------------------------------------------------------------------------------------- */
	/** QUERY STRING ============================================================================ */
	/** ----------------------------------------------------------------------------------------- */

	/**
	 * Get the query string as an array. Parameters are sorted and some are removed.
	 *
	 * @since  3.3
	 * @access public
	 * @author Grégory Viguier
	 *
	 * @return array
	 */
	public function get_query_params() {
		if ( ! self::$get ) {
			return [];
		}

		// Remove some parameters.
		$params = array_diff_key(
			self::$get,
			$this->config->get_config( 'cache_ignored_parameters' )
		);

		if ( $params ) {
			ksort( $params );
		}

		return $params;
	}

	/**
	 * Get the query string with sorted parameters, and some other removed.
	 *
	 * @since  3.3
	 * @access public
	 * @author Grégory Viguier
	 *
	 * @return string
	 */
	public function get_query_string() {
		return http_build_query( $this->get_query_params() );
	}

	/** ----------------------------------------------------------------------------------------- */
	/** PROPERTY GETTERS ======================================================================== */
	/** ----------------------------------------------------------------------------------------- */

	/**
	 * Get the `cookies` property.
	 *
	 * @since  3.3
	 * @access public
	 * @author Grégory Viguier
	 *
	 * @return array
	 */
	public function get_cookies() {
		return self::$cookies;
	}

	/**
	 * Get the `post` property.
	 *
	 * @since  3.3
	 * @access public
	 * @author Grégory Viguier
	 *
	 * @return array
	 */
	public function get_post() {
		return self::$post;
	}

	/**
	 * Get the `get` property.
	 *
	 * @since  3.3
	 * @access public
	 * @author Grégory Viguier
	 *
	 * @return array
	 */
	public function get_get() {
		return self::$get;
	}

	/** ----------------------------------------------------------------------------------------- */
	/** ERRORS ================================================================================== */
	/** ----------------------------------------------------------------------------------------- */

	/**
	 * Set an "error".
	 *
	 * @since  3.3
	 * @access protected
	 * @author Grégory Viguier
	 *
	 * @param string $message A message.
	 * @param array  $data    Related data.
	 */
	protected function set_error( $message, $data = [] ) {
		$this->last_error = [
			'message' => $message,
			'data'    => (array) $data,
		];
	}

	/**
	 * Get the last "error".
	 *
	 * @since  3.3
	 * @access public
	 * @author Grégory Viguier
	 *
	 * @return array
	 */
	public function get_last_error() {
		return array_merge(
			[
				'message' => '',
				'data'    => [],
			],
			(array) $this->last_error
		);
	}
}