title: (When) should I use type hinting in PHP?
body: <p>I can't understand the motivation of PHP authors to add the type hinting. I happily lived before it appeared. Then, as it was added to PHP 5, I started specifying types everywhere. Now I think it's a bad idea, as far as duck typing assures minimal coupling between the classes, and leverages the code modularization and reuse.</p>
  
  <p>It feels like type hints split the language into 2 dialects: some people write the code in static-language style, with the hints, and others stick to the good old dynamic language model. Or is it not "all or nothing" situation? Should I somehow mix those two styles, when appropriate?</p>