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In this example, we invoke menu item 1:
http://www.example.org/joomla/index.php?Itemid=1
Some components can output data in different formats. If we want to output data
in a different format, we can use the query value format. This will only work if
the component we are accessing supports the specified format. In this example, we
invoke component example and request the data in feed format:
http://www.example.org/joomla/index.php?option=com_example&format=feed
Another common query value is task, which is used to determine the task the
component will perform. When we create our own components, it is advantageous to
use them. The reason behind this is that these components are partially implemented
in the framework that we will be using. In this example, we request the component
example and invoke the task view:
http://www.example.org/joomla/index.php?option=com_example&task=view
Chapter 2
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When we build our own URIs, we need to make sure that we do not conflict with
any of the core query values.


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