title: I am looking for the PHP equivalent for VB doevents
body: <p>I am looking for the PHP equivalent for VB doevents.
  I have written a realtime analysis package in VB and used doevents to release to the operating system.
  Doevents allows me to stay in memory and run continuously without filling up memory and allows me to respond to user input.
  I have rewritten the package in PHP and I am looking for that same doevents feature.
  If it doesn't exist I could reschedule myself and exit.
  But I currently don't know how to do that and I think that would add a lot more overhead.
  Thank you, gerardg</p>