E-Books for you

This example demonstrates how we can test if a user has logged in or
if the user is a guest:
$user =& JFactory::getUser();
if ($user->guest)
{
// user is a guest (is not logged in)
}
User Parameters
The params attribute is special. We design an INI string to store additional
parameters about a user. The users.xml file, located in the backend in the root of the
user's component, contains the default attributes.
This table details the default parameters defined in the users.xml file:
Parameter Description
admin_language Backend language
language Frontend language
editor User's editor of choice.
helpsite User's help site
timezone Time zone in which the user is located (hours offset from UTC+0)
To access these we use the getParam() and setParam() methods. We could directly
access the params attribute but we would then have to parse the data. This example
demonstrates how we determine the user's time zone:
// get the default time zone from the registry
$registry =& JFactory::getConfig();
$tzdefault = $registry->getValue('config.


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