Codefilter is a module used to highlight PHP source code in webpages. It is used on Drupal.org. I recently released an updated version, 7.x-1.1, with some new features.
Download it here: https://drupal.org/project/codefilter
27 Avenue de l'Opéra
Phone: +33 1 79 97 25 70
Map: Google MapsView other locations