From PhpCOIN Documentation
Pages are under-utilized within phpCOIN. The purpose is to give a sequence of pages that can be used for general purposes, or that can be linked to other pages to create a user-manual or similar structured website.
For phpCOIN v1.4.0 and higher, within the body of a pages phpCOIN recognizes several tags and will replace them at run-time with generated content. These tags are:
%GOOGLE_H% A horizontal Google AdSense ad %GOOGLE_V% A vertical Google AdSense ad