.emacs key maps are overwritten by php-mode

[Stefan Horomnea]

Hello,
I write something in my .emacs file like this:
(global-set-key [(control ?d)] 'kill-ring-save)

This works fine, in other modes (text, html, etc.). But when I open a 
php file, my Ctrl+d instead of kill-ring-save does 
c-electric-delete-forward .
And I have several commands in my .emacs file, that are broken by the 
loading of the php-mode. What's the catch ?

Thank you.

Stefan