Wednesday, March 18, 2009

Ch. 5 Cont.

Things learned:

include, include_once, require, require_once - script code that allow users to share code across multiple scripts. 
ORDER BY - an SQL command used to order things in a database
LIMIT - SQL command that limit the amount a statement can delete, this ensure accuracy of the deletion
UNLINK() - this deletes a file from the web server

Get method - used for data retrieval that doesn't change anything on the server. This method is shown in the url bar. Usually for directly sending data to server in a URL. 
Post method - used to send data to the server that somehow changes the state of the server. This method is hidden in the url bar. Usually used in web forms. 

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