Automattic / jetpack

								break;

							case 'footer_widgets' :

								if ( is_string( $value ) )

									$settings[ $key ] = sanitize_title( $value );

								elseif ( is_array( $value ) )

									$settings[ $key ] = array_map( 'sanitize_title', $value );

								elseif ( is_bool( $value ) )

									$settings[ $key ] = $value;

								break;

				}

				// Check the element type, so that we're only recursing if we really have to.

				if ( is_array( $el ) || is_object( $el ) ) {

					$output[ $clean_id ] = _wp_json_sanity_check( $el, $depth - 1 );

				} elseif ( is_string( $el ) ) {

					$output[ $clean_id ] = _wp_json_convert_string( $el );

				} else {

					$output[ $clean_id ] = $el;

				}

			}

		} elseif ( is_object( $data ) ) {

			$output = new stdClass;