joomla/mod_wkhello/mod_wkhello.php

<div style="border-style: dashed; border-color:green;">
<h4>Hello Walter Joomla module mod_wkhello</h4><ul>';
<?php
defined('_JEXEC' ) or die('Restricted Access');
/*
echo '<li>file=' . __FILE__ ;
echo '<li>getLayout=' . JModuleHelper::getLayoutPath('abc.efg') ;
echo '<li>JRequest::getURI()=' . JRequest::getURI() ;
echo '<li>JRequest::getVar(vEins)=' . JRequest::getVar('vEins') ;
*/
echo '<li>JPATH_ROOT=' . JPATH_ROOT ;
echo '<li>JURI::root()=' . JURI::root() ;
/*
echo '<li>JURI::base()=' . JURI::base() ;
echo '<li>JURI::current()=' . JURI::current() ;
echo '<li>JRequest::get()=' ; print_r(JRequest::get()) ;
*/
echo '</ul><h4>hello userListe</h3><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_wkHello';
?>
</div>