title: php page being downloaded instead of being processed while accessing outside a particular domain
body: <p>I have installed PHP5 with apache 2.2.16 and trying to serve an application based on php.  </p>
  
  <p>I am able to acess this application inside a particular domain (php scripts are processed normally) but when i trying to access it outside that domain my php pages are being downloaded instead of being processed ?</p>
  
  <p>What could be the reason?</p>