Since phpFox version 4.6.0, in Browse Users page (Admincp), admin can view item statistic information of users. So, we prepared this document to help you can integrate your app with this feature.

/**
 * @param $iUserId user id of selected user
 * @return array|bool
 */
public function getUserStatsForAdmin($iUserId)
{
    if (!$iUserId) {
        return false;
    }

    $iIncomplete = db()->select('COUNT(*)')
        ->from(':todolist_task')
        ->where([
            'user_id' => (int)$iUserId,
            'task_status' => 0
        ])
        ->execute('getField');
    $iComplete = db()->select('COUNT(*)')
        ->from(':todolist_task')
        ->where([
            'user_id' => (int)$iUserId,
            'task_status' => 1
        ])
        ->execute('getField');
    return [
        'merge_result' => true,
        'result' => [
            [
                //Name of the item
                'total_name' => _p('incomplete_tasks'),
                //Total count
                'total_value' => $iIncomplete,
                'type' => 'item'
            ],
            [
                'total_name' => _p('complete_tasks'),
                'total_value' => $iComplete,
                'type' => 'item'
            ]
        ]
    ];
}