That's extremely helpful advice.
The video to those slides : https://www.youtube.com/watch?v=ZSFDm3UYkeE
Re:Rambling On [PHP] Internals
by DavidHogue on Friday September 06, 2013 @07:22PM
(#6343202)
They also have a few other talks on youtube about similar topics and a book now: http://shop.oreilly.com/product/0636920018025.do
http://www.slideshare.net/vishnu/how-to-protect-yourhow-to-p...