Parameters II

Where do parameters come from mommy?

Playing around with the Joomla front page. Clicking on something and seeing what URL it gives me. Inside the URL I can see parameters ($REQUIRE, $GET) being passed to a component that will display in the center of the page. Still doesn't tell me how or why they got there, but it's a start in unravelling the logic of Joomla! code.

Hit the Register link on the Joomla front page and I get this URL:

http://127.0.0.1/joomla/index.php?option=com_registration&task=register

On the Main Menu:

1. Home:

http://127.0.0.1/joomla/index.php?option=com_frontpage&Itemid=1

2. Joomla! License:

http://127.0.0.1/joomla/index.php?option=com_content&task=view&id=5&Itemid=6

3. News:

http://127.0.0.1/joomla/index.php?option=com_content&task=section&id=1&Itemid=2

4. Blog:

http://127.0.0.1/joomla/index.php?option=com_content&task=blogsection&id=0&Itemid=9

5. Links:

http://127.0.0.1/joomla/index.php?option=com_weblinks&Itemid=23

6. Contact Us:

http://127.0.0.1/joomla/index.php?option=com_contact&Itemid=3

7. Search:

http://127.0.0.1/joomla/index.php?option=com_search&Itemid=5

8. News Feeds:

http://127.0.0.1/joomla/index.php?option=com_newsfeeds&Itemid=7

9. FAQs:

http://127.0.0.1/joomla/index.php?option=com_content&task=category§ionid=3&id=7&Itemid=25

10. Wrapper:
http://127.0.0.1/joomla/index.php?option=com_wrapper&Itemid=8

11. Joomla! Home:

http://www.joomla.org/


Some generalizations:

1. Option is the component being called like com_registration. So after you click on the frontpage something is mapping your click to a component call. Must be the infamous template I've been hearing so much about.

2. Task comes from a limited set: view, section, register, blogsection... It selects the thing to do once you reach the component.

3. ItemId ??????????????

4. Id I guess would be a user Id, maybe?