title: Namespaces in php 5.2
body: <p>I've done little web using namespaces. I have it in my computer and i'm about to moving it to free hosting that uses php 5.2. Syntax highlighter for php 5.2 interprets them as errors.</p>
  
  <p>Are namespaces supported by php 5.2?</p>
  
  <p>If not is there any way how to use them with little changes to existing code?</p>