List currently logged in users (wordpress)

5 comments

1. Personaly I would use the session_tokens meta key to determine if a user is online (or has a running session) or not.

   $aUsers = get_users([
       'meta_key' => 'session_tokens',
       'meta_compare' => 'EXISTS'
   ]);
   

   You’ll get a list of Users with running sessions. Then you can use that for your output.

   echo sprintf(
       'Users online: %s',
       implode(', ', array_map(function($oUser){
           return get_avatar( $oUser->ID, 96 ) . '<span class="username">'$oUser->display_name.'</span>';
       }, $aUsers))
   );
   

   You could even display the session ip addresses if you modify the last bit of code.

   echo sprintf(
       'Users online: %s',
       implode(', ', array_map(function($oUser){
           $aCurrentSessions = get_user_meta($oUser->ID, 'session_tokens', true);
           return get_avatar( $oUser->ID, 96 ) . '<span class="username">'$oUser->display_name.'</span> (' .
               implode('; ', array_map(function($aSession) {
                   return $aSession['ip']; // only return the session ips
               }, $aCurrentSessions)) . ')';
       }, $aUsers))
   );
   

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2. WordPress does not have a built in function for this, but you can easily add one yourself. For example, you can use the wp_login hook to store each users last login time. Then you can list the users that logged in within the last 30 minutes or so as online.

   add_action('wp_login', 'store_last_login', 10, 2);
   
   function store_last_login($current_user) {
       global $current_user;
       get_currentuserinfo();
       $user = $current_user->user_login;
       update_user_meta($current_user->ID, 'last_login', current_time('mysql', 1));
   }
   

   Then, you can echo out the users that logged in within the last twenty minutes ( or whatever timeframe you choose) with something like:

   function list_online_users() {
   $users = get_users( 'blog_id=1' );
   foreach ($users as $online) {
   
       $getLastLogin = (get_user_meta($online->ID, 'last_login', true));
       $lastLogin = new DateTime($getLastLogin);
       $since_start = $lastLogin->diff(new DateTime(current_time('mysql', 1)));
   
       $minutesSinceLogin = $since_start->i;
   
       // this will list every user and whether they logged in within the last 30 minutes
       if ($minutesSinceLogin > 30 ) {
           echo '<li>'.$online->user_login . ' is offline </li>';
       } else { 
           echo '<li>'.$online->user_login . ' is online </li>'; 
       }
   
       }
   
   }
   

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3. If you don’t want to use a plugin, this can be done easily :

   1/ Add this to your functions.php file to add or remove a usermeta when the user connects or disconnects :

       function add_user_logged_meta(){
           $user = wp_get_current_user();
           update_user_meta($user->ID, 'asdb-loggedin', true);
       }
       // user connects
       add_action('init','add_user_logged_meta');
   
       function delete_user_logged_meta() {
           $user = wp_get_current_user();
           update_user_meta($user->ID, 'asdb-loggedin', false);
       }
       // user disconnects
       add_action('clear_auth_cookie', 'delete_user_logged_meta');
   

   2/ In your templates (you could also make a function in functions.php), to show all users that are loggedin, just use the built in wordpress get_users() with some meta query params :

   $loggedin_users = get_users([
       'meta_key' => 'asdb-loggedin',
       'meta_value' => '1',
       'meta_compare' => '='
   ]);
   foreach( $loggedin_users as $loggedin_user ){
       echo $loggedin_user->user_login;
   
   }
   

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4. 1)Create on extra field named as ‘status’ with enum(‘1′,’0’) in wp_users table
   2)after in functions.php put following code

   <?php
   function add_session_mitesh()
   {
       global $wpdb;
       if(is_user_logged_in())
       {
           $user_id = get_current_user_id();
           $wpdb->query("UPDATE wp_users SET `status` = '1' WHERE `wp_users`.`ID` = $user_id;");
       }
        $user_id;
   }
   add_action('init','add_session_mitesh');
   
   
   function delete_session_mitesh() {
   global $wpdb;
       if(is_user_logged_in())
       {
           $user_id = get_current_user_id();
           $wpdb->query("UPDATE wp_users SET `status` = '0' WHERE `wp_users`.`ID` = $user_id;");
       }
    $user_id;
   }
   add_action('wp_logout', 'delete_session_mitesh');
   ?>
   

   now to list the currently login user you can use

   <?php  $users=$wpdb->get_results( 'SELECT * FROM wp_users where status='1'', 'ARRAY_A'); 
   <table width="100%" border="2px" style="text-align: center;">
       <?php
       foreach( $users as $g )
       {   
       ?>
           <tr><td style="text-align: center;"> <center> <?php echo $g['user_login'] ?> </center></td>
           </tr>
       <?php } ?>
       </p>
       </table>    
   

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5. You can get current logged in user in following way

   $current_user = wp_get_current_user();
   echo 'Username: ' . $current_user->user_login . '<br />';
   echo 'User email: ' . $current_user->user_email . '<br />';
   echo 'User first name: ' . $current_user->user_firstname . '<br />';
   echo 'User last name: ' . $current_user->user_lastname . '<br />';
   echo 'User display name: ' . $current_user->display_name . '<br />';
   echo 'User ID: ' . $current_user->ID . '<br />'; ?>
   

   id this $current_user variable you can find all the user details in array and object you can take from this variable

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