joomla/mod_wkparams/mod_wkhello.php

<div style="border-style: dashed; border-color:green;">
<h4>wkParams: wkhello with params from settings</h4>
<?php
defined('_JEXEC' ) or die('Restricted Access');

echo '<ul> <li>$params->par1   = ' . $params->get('par1')
   . '</li><li>$params   = ' . print_r($params, true)
   . '</li><li>module->params   = ' . print_r($module->params, true)
   . '</li><li>$module->module = ' . $module->module
   . '</li><li>$module->title  = ' . $module->title
   . '</li><li>$module->id     = ' . $module->id;

echo '</li><li>JPATH_ROOT=' . JPATH_ROOT 
   . '</li><li>JURI::root()=' . JURI::root() 
   . '</li></ul>';

echo '<h4>userListe</h4><ul>';
$db = JFactory::getDBO();
$db->setQuery("select name from #__users");
$users = $db->loadObjectList();
$i = 0;
foreach($users as $u1)
{
    echo '<li>'. ++$i . '. ' .$u1->name , '</li>';
}
echo '</ul>' . $i . ' users from com_wkparams';
?>
</div>