I have 2 questions to ask:
(1) I have been doing php for quite some time and I would like to know how a link such as this one works:
My problem is the part that comes after the question mark. I have been using joomla of late and such links are very common in joomla and of course all over the net.
(2) I do shell scripting on linux and I recently tried scripting using php and it worked fine. I would like to know how I can read in user input using php.