Automattic / jetpack

				$module_info = Jetpack::get_module( $module );

				if ( ! $module_info['deactivate'] ) {

					$state = in_array( $module, $other_modules ) ? 'reactivated_modules' : 'activated_modules';

					if ( $active_state = Jetpack::state( $state ) ) {

						$active_state = explode( ',', $active_state );

					} else {

						$active_state = array();

					}

					$active_state[] = $module;

					Jetpack::state( $state, implode( ',', $active_state ) );

				}

			$active[] = $module;

			$state    = in_array( $module, $other_modules ) ? 'reactivated_modules' : 'activated_modules';

			if ( $active_state = Jetpack::state( $state ) ) {

				$active_state = explode( ',', $active_state );

			} else {

				$active_state = array();

			}

			$active_state[] = $module;

			Jetpack::state( $state, implode( ',', $active_state ) );

			Jetpack::update_active_modules( $active );