title: Simultaneous Requests to PHP Script
body: <p>If the PHP Engine is already in the middle of executing a script on the server what would happen to other simultaneous browser requests to the same script?  </p>
  
  <ul>
  <li>Will the requests be queued?</li>
  <li>Will they be ignored?</li>
  <li>Will each request have its own script
  instance?</li>
  <li>Any other possibility?</li>
  </ul>