[eluser]adamp1[/eluser]
Hate to say this but, PHP is not the best thing for a task like this. If your wanting to handle huge amounts of data and do it in real time may I suggest maybe writing this in a language like C++/Ada/C#. It depends how good the performance you want out of the system. Anything written and compiled will be magnitudes faster than PHP. Remember PHP is not for calculations its for displaying web pages. I haven't done anything in C# or C++ to do with real time programming but I am in the process of using Ada for a real-time systems.
Really it depends how much your willing to work on it and how fast you want it. I know there are MySQl implementation packages for Ada out there. Also it depends on if you can run the actual files on your server (probably not if its shared).
