PhD request about highlight source code

Hello PhD team, Is it possible to include/define a custom highlight source-code engine ? Standard PHP highlight source code functions [1] does not provided line numbering, and its a regret (for me). I prefer to use GeSHi [2] that give ability to build such result [3] extends to lot of language. Which I consider better to follow a tutorial step by step. Laurent Laville [1] http://www.php.net/manual/en/function.highlight-file.php

    http://www.php.net/manual/en/function.highlight-string.php

[2] http://qbnz.com/highlighter/ [3] http://www.laurent-laville.org/pear/HTML_QuickForm_advmultiselect/docs/TDG/en/ch05.html