I just ran into this awesome PHP class called dBug.  It works like print_r, but does so much more.  You can expand and collapse anything in the structure you use it with.  You know no idea how nice this will be to parse large data structures with.  So nice.  Check it out at: http://dbug.ospinto.com/

cURL is a very useful tool used to progmatically connect and interact with other systems to do various tasks like download a Web Page or RSS feed.  It is also used to send information to another computer and get a response.
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