ntwb / wordpress

		if ( ! wp_installing() ) {

			// If option is not in alloptions, it is not autoloaded and thus has a timeout

			$alloptions = wp_load_alloptions();

			if ( !isset( $alloptions[$transient_option] ) ) {

				$transient_timeout = '_transient_timeout_' . $transient;

				$timeout = get_option( $transient_timeout );

				if ( false !== $timeout && $timeout < time() ) {

					delete_option( $transient_option  );

					delete_option( $transient_timeout );

					$value = false;

				}

			}

		}

		if ( ! isset( $value ) )

		// Core transients that do not have a timeout. Listed here so querying timeouts can be avoided.

		$no_timeout = array('update_core', 'update_plugins', 'update_themes');

		$transient_option = '_site_transient_' . $transient;

		if ( ! in_array( $transient, $no_timeout ) ) {

			$transient_timeout = '_site_transient_timeout_' . $transient;

			$timeout = get_site_option( $transient_timeout );

			if ( false !== $timeout && $timeout < time() ) {

				delete_site_option( $transient_option  );

				delete_site_option( $transient_timeout );

				$value = false;

			}

		}

		if ( ! isset( $value ) )

			$value = get_site_option( $transient_option );