PIR is a web based Rich Text Editor which utilizes PHP and IFRAME and JavaScript. It includes all the necessary functions to edit WYSIWYG(What you see is what you get) contents. It uses an embeded iframe as the edit area. And all the commands such as bold,italic,copy and insert image are realized with JavaScript(Client-side) and PHP(Server-side).
PEditor: An PHP+iFrame WYSIWYG Editor | Heykuki News