PHP: Hypertext Preprocessor is a server-side scripting language designed for Web development, but also used as a general-purpose programming language. PHP code may be embedded into HTML code, or it can be used in combination with various web template systems, web content management systems, and web frameworks.
Quip is a collaboration solution which allows teams to create and work on documents, spreadsheets, and task lists in real time with built-in chat and commenting.