title: two programmers working on the same code
body: <p>I'm working on some PHP code with a partner, and were both running a LAMP (or in my case - MAMP) server locally on our machines. 
  Is there some way we can both work simultaneously on the same piece of code? This would require both our IDE's (I use Zend Studio, he uses PHPed) and our MySQL server to update when any change is done.</p>
  
  <p>P.S. - Is there any system that also allows real-time commenting on code?</p>
  
  <p>Thanks.</p>