I wonder if this could also be done with bioluminescent mushrooms such as the Panellus stipticus.

Mushrooms such as the matsutake and shaggy mane accumulate arsenic. These could be grown on arsenic contaminated lands and then processed to extract the arsenic: http://books.google.com/books?id=NPI8_-omzvsC&pg=PA103&lpg=PA103&dq=mycelium+running+arsenic&source=bl&ots=38qB71dh2N&sig=jWBgriT6LmoI7ELXTWuy6Vgfm3I&hl=en&ei=uI0bTJOlAZuKNc6gwbcM&sa=X&oi=book_result&ct=result&resnum=1&ved=0CBIQ6AEwAA#v=onepage&q&f=false

CakePHP, a rapid development framework for PHP, has a pretty decent guide of coding standards. It is short and might be a good place to start.