wp_user_settings()

1698function wp_user_settings() {1699 1700	if ( ! is_admin() || wp_doing_ajax() ) {1701		return;1702	}1703 1704	$user_id = get_current_user_id();1705	if ( ! $user_id ) {1706		return;1707	}1708 1709	if ( ! is_user_member_of_blog() ) {1710		return;1711	}1712 1713	$settings = (string) get_user_option( 'user-settings', $user_id );1714 1715	if ( isset( $_COOKIE[ 'wp-settings-' . $user_id ] ) ) {1716		$cookie = preg_replace( '/[^A-Za-z0-9=&_]/', '', $_COOKIE[ 'wp-settings-' . $user_id ] );1717 1718		// No change or both empty.1719		if ( $cookie === $settings ) {1720			return;1721		}1722 1723		$last_saved = (int) get_user_option( 'user-settings-time', $user_id );1724		$current    = 0;1725 1726		if ( isset( $_COOKIE[ 'wp-settings-time-' . $user_id ] ) ) {1727			$current = (int) preg_replace( '/[^0-9]/', '', $_COOKIE[ 'wp-settings-time-' . $user_id ] );1728		}1729 1730		// The cookie is newer than the saved value. Update the user_option and leave the cookie as-is.1731		if ( $current > $last_saved ) {1732			update_user_option( $user_id, 'user-settings', $cookie, false );1733			update_user_option( $user_id, 'user-settings-time', time() - 5, false );1734			return;1735		}1736	}1737 1738	// The cookie is not set in the current browser or the saved value is newer.1739	$secure = ( 'https' === parse_url( admin_url(), PHP_URL_SCHEME ) );1740	setcookie( 'wp-settings-' . $user_id, $settings, time() + YEAR_IN_SECONDS, SITECOOKIEPATH, '', $secure );1741	setcookie( 'wp-settings-time-' . $user_id, time(), time() + YEAR_IN_SECONDS, SITECOOKIEPATH, '', $secure );1742	$_COOKIE[ 'wp-settings-' . $user_id ] = $settings;1743}