This extension provides a command to insert the PHP namespace automatically with SublimeText.

To start using it:

cd ~/.config/sublime-text-2/Packages
git clone https://github.com/alexandresalome/sublime-alom Alom

Take a look at the code, it's very easy to understand. It creates a command in SublimeText 2, you can then configure in your preferences a shortcut for it (see the README file for more details).

In SublimeText 2, you need to type ctrl + shift + P and it will display the command panel. Type "Insert PHP namespace" and execute it.

View on Github.