Joomla

URL:

JRoute::_( 'index.php?option=com_user&view=login' );
JURI::base();
JPATH_ADMINISTRATOR  The path to the administrator folder.
JPATH_BASE  The path to the installed Joomla! site.
JPATH_CACHE  The path to the cache folder.
JPATH_COMPONENT  The path to the current component being executed.
JPATH_COMPONENT_ADMINISTRATOR  The path to the administration folder of the current component being executed.
JPATH_COMPONENT_SITE  The path to the site folder of the current component being executed.
JPATH_CONFIGURATION  The path to folder containing the configuration.php file.
JPATH_INSTALLATION  The path to the installation folder.
JPATH_LIBRARIES  The path to the libraries folder.
JPATH_PLUGINS  The path to the plugins folder.
JPATH_ROOT  The path to the installed Joomla! site.
JPATH_SITE  The path to the installed Joomla! site.
JPATH_THEMES  The path to the templates folder.
JPATH_XMLRPC  The path to the XML-RPC Web service folder.(1.5 only)

Language:

JLanguage::load($extension= 'joomla'
        $basePath=JPATH_BASE
        $lang=null
        $reload=false)
(http://docs.joomla.org/JLanguage::load/1.5)

Add script:

// Add a reference to a Javascript file
// The default path is 'media/system/js/'
JHTML::script($filename, $path, $mootools);

// Add a reference to a CSS file
// The default path is 'media/system/css/'
JHTML::stylesheet($filename, $path);

If your script requires Mootools, include the line:
JHTML::_("behavior.mootools");

$document =& JFactory::getDocument();
$document->addScript($url);
$document->addStyleSheet($url);
(http://docs.joomla.org/Adding_JavaScript_and_CSS_to_the_page)

Query:

$db =& JFactory::getDBO();
$db->setQuery($query, 0, $items);
$rows = $db->loadObjectList();

User:

$user =& JFactory::getUser();
$aid = $user->get('aid', 0);

ini_set:

ini_set('max_execution_time', 180);
ini_set('post_max_size', '64M');
ini_set('memory_limit', '64M');

Xem vị trí các module trong Joomla:

Trên url thêm ?tp=1