Notification that the admin is online

1 comment

1. This should get you started. I’ve used a timeout of 5 minutes to allow for time sitting idle on the website. You could improve the accuracy with a script (if the current user is the admin) & pinging an AJAX request every few minutes to update the admin_last_seen timestamp.

   /**
    * Check if the admin was last online at least 5 minutes ago.
    * 
    * @return bool
    */
   function wpse_140253_is_admin_online() {
       if ( false === $last_seen = get_option( 'admin_last_seen' ) )
           update_option( 'admin_last_seen', $last_seen = 0 );
       elseif ( $last_seen )
           return $last_seen + 5 * MINUTE_IN_SECONDS > time();
       return false;
   }
   
   /**
    * Update "admin_last_seen" timestamp.
    * 
    * @link http://wordpress.stackexchange.com/q/140253/1685
    */
   function wpse_140253_update_admin_online_status() {
       if ( current_user_can( 'manage_options' ) /* Might be better to check user ID if you have multiple admins */ ) {
           if ( ! $last_seen = get_option( 'admin_last_seen' ) )
               $last_seen = 0;
   
           // Only make a database update if last seen greater than timeout.
           if ( $last_seen + 5 * MINUTE_IN_SECONDS < time() )
               update_option( 'admin_last_seen', time() ); 
       }       
   }
   
   add_action( 'init', 'wpse_140253_update_admin_online_status' );
   

   And in use:

   <?php if ( wpse_140253_is_admin_online() ) : ?>
        <div class="message">Admin is online!</div>
   <?php endif ?>
   

   Log in to Reply