title: Can I hide PHP extension in HTML source code
body: <p>I know that we can hide PHP extensions on URL bar. Can we hide PHP extensions when the user view source code? 
  For example, in the index.php page (on url bar it is abc.com/index)
  And I view the source code, the .php extension is still there (in <code>&lt;a&gt;</code> tags). Can I hide it?</p>