Best List of Cheat Sheets for Designers and Developers:
It is always hard to remember all the scripting languages. Below are all the Best list of Cheat Sheets for (almost) every web script available including: CSS, Ajax, HTML, XHTML, ActioScript, PHP, etc.
Cascading Style Sheets (CSS) is a style sheet language used for describing the presentation of a document written in a markup language.
PHP, originally derived from Personal Home Page Tools, now stands for PHP: Hypertext Preprocessor
An object-oriented computer programming language commonly used to create interactive effects within web browsers.
WordPress is widely considered easy to use and is the CMS of choice for almost 75 million websites.
MySQL is an open source relational database management system. Information in a MySQL database is stored in the form of related tables. MySQL databases are typically used for web application development.
ActionScript is an object-oriented programming language originally developed by Macromedia Inc. (since merged into Adobe Systems). It is a derivation of HyperTalk, the scripting language for HyperCard.
NET is a new business strategy from Microsoft aimed at a convergence of personal computing with the Web.
htaccess is a Web server configuration file that contains commands known by the server that tell the server how to behave in certain instances.
Ruby on Rails
Ruby on Rails, sometimes known as “RoR” or just “Rails,” is an open source framework for Web development in Ruby, an object-oriented programming (OOP) language similar to Perl and Python.
Hypertext Markup Language, a standardized system for tagging text files to achieve font, colour, graphic, and hyperlink effects on World Wide Web pages.
Extensible Hypertext Markup Language (XHTML) is part of the family of XML markup languages. It mirrors or extends versions of the widely used Hypertext Markup Language (HTML), the language in which Web pages are formulated.
MongoDB is a document database with the scalability and flexibility that you want with the querying and indexing that you need.
Refernece: MongoDB for Definition, Google for other definitions for platforms.