+ wishlist Pro PHP Security: From Application Security Principles to the Implementation of XSS Defenses [9781430233183] Add to Cart The item has been added Author: Chris Snyder Thomas Myer Michael Southwell Pro PHP Security: From Application Security Principles to the Implementation of XSS Defenses [9781430233183] Buy More - Save More. Below are the available bulk discount rates for each individual item when you purchase a certain amount Quantity Price Savings 25 - 49 12% 50 - 99 13% 100+ 14% List Price As Low as $79.99 Format: Paperback