[Mediawiki-l] PHP language in wiki pages

[Sarel Wessels (Agri Wiki)]

  This question might be offtopic here, but I do not realy know PHP 
well, and would like to know the following:

1. Is there a offline WYSIWYG editor that can assist one in creating 
wiki pages?
2. Are there any resources out there that can assist me in learning PHP 
perhaps that one uses in wiki pages?

Thanks.

Regards,
Sarel