Need help to install BIDI with php

[arn at scs-net dot org]

Hello,

I'm working on a php library managment open source software, trying to implement
arabic in it.
I'm currently working on a PHP class to export data in PDF (didn't found an open
source one). I manage to write left to right arabic letters with the correct shape.
I've still have a problem when you have ponctuation in the sentence. 
Do you have any analysis I can use ( or program written in another language) so
as to see how to deal with commas...
Regards
Armelle