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Cheat Sheets

A selection of 31 awesome, printable quick references for a variety of languages and web technologies. These and more are also available at Cheatography.

Technology and Development Cheat Sheets

PHP Coding Standards

PHP Coding Standards Cheat Sheet

A cheat sheet for the PHP-FIG PSR standards! A quick reference for the modern PHP developer!

Wikipedia

Wikipedia Cheat Sheet

A cheat sheet for Wikipedia editors, with formatting help, useful links and a glossary of common shortcuts.

Vimeo API

Vimeo API Cheat Sheet

The Vimeo API cheat sheet, for advanced API methods.

Linux Command Line

Linux Command Line Cheat Sheet

The Linux Command Line Cheat Sheet, a quick reference guide for bash and other command line tools in Linux.

Python

Python Cheat Sheet

The Python Cheat Sheet, a quick reference guide for the Python programming language.

Subversion

Subversion Cheat Sheet

The Subversion Cheat Sheet, a quick reference guide for command line Subversion.

Regular Expressions (V2)

Regular Expressions Cheat Sheet (V2)

The second version of the Regular Expressions Cheat Sheet, a quick reference guide for regular expressions, including symbols, ranges, grouping, assertions and some sample patterns to get you started.

mod_rewrite (V2)

mod_rewrite Cheat Sheet (V2)

The second version of the mod_rewrite Cheat Sheet, a quick reference guide for mod_rewrite, with rewrite flags, regular expression syntax and sample rules.

PHP (V2)

PHP Cheat Sheet (V2)

The second version of the PHP Cheat Sheet, a quick reference guide for PHP, with functions references, a regular expression syntax guide and a reference for PHP's date formating functions.

CSS (V2)

CSS Cheat Sheet (V2)

The second version of the CSS Cheat Sheet, a quick reference guide for CSS, listing selector syntax, properties, units and other useful bits of information.

SQL Server

SQL Server Cheat Sheet

This A4 reference lists the various functions available in Microsoft SQL Server, and demonstrates the creation of stored procedures, triggers and functions.

HTML

HTML Cheat Sheet

HTML is the language of the web. It is the semantic support on which websites depend. This A4 reference lists the various tags available to the web designer, as well as a selection of useful character entities, attributes and events.

Microformats

Microformats Cheat Sheet

Microformats allow us to add more information to our documents on the web, embedding semantic data in web pages that can then be parsed and used in other applications. This reference sheet contains an overview of the most often used microformats.

Ruby on Rails

Ruby on Rails Cheat Sheet

A quick reference guide for Ruby on Rails, containing the default directory structure, predefined variables, methods, reserved words and regular expression syntax.

ASP / VBScript

ASP / VBScript Cheat Sheet

A quick reference guide for ASP / VBScript, containing functions, collections, regular expression syntax and other useful bits of information.

HTML Character Entities

HTML Character Entities Cheat Sheet

I'm forever looking up character codes, so this cheat sheet was a no-brainer. This contains a list of the assigned character codes in HTML, with an example of how they are displayed, and description.

JavaScript

JavaScript Cheat Sheet

A quick reference guide for JavaScript, listing methods and functions, and including a guide to regular expressions and the XMLHttpRequest object.

MySQL

MySQL Cheat Sheet

A quick reference guide for MySQL, including functions (both in MySQL and PHP), data types, and sample queries. Available in PDF and PNG formats.

RGB Hex Colour Chart

RGB Hex Colour Chart

A free, printer-friendly RGB Hex colour chart for web designers.

Other Cheat Sheets

Chess - Algebraic Notation

Chess - Algebraic Notation Cheat Sheet

A cheat sheet for beginners to chess, to help understand algebraic notation.

Cheatography

Cheatography Cheat Sheet

A cheat sheet for Cheatography! Block types and tips for making your very own cheat sheets.

Poker

Poker Cheat Sheet

A cheat sheet for poker, including how to play the three most common variants, hand ranks, and basic positional play.

Settlers of Catan

Settlers of Catan Cheat Sheet

A cheat sheet for the awesome board game Settlers of Catan, including lots of potential alternative (house) rules.

Six Nations 2012

Six Nations 2012 Cheat Sheet

Who says cheat sheets have to be geeky? The 2012 Six Nations is about to start, so I've put together the ultimate one-page help sheet for rugby fans.

Kings and Queens

Kings and Queens Cheat Sheet

A cheat sheet for the discerning historian: Kings and Queens of the United Kingdom.

NaNoWriMo

NaNoWriMo Cheat Sheet

A cheat sheet for NaNoWriMo (write a 50,000 word book in November!), with some dramatic situations, the Hero's Journey, a word count tracker and some inspirational quotes to keep you going.

French

French Cheat Sheet

A cheat sheet for French to English words and phrases.

Archived Cheat Sheets

These cheat sheets have been superceded by more recent versions above.

Regular Expressions (V1)

Regular Expressions Cheat Sheet (V1)

Regular Expressions are very powerful, and many people find their unusual syntax hard to get to grips with. This A4 reference serves as a guide to regular expression patterns and options.

mod_rewrite (V1)

mod_rewrite Cheat Sheet (V1)

A quick reference guide for mod_rewrite, including server variables, flags and regular expression syntax. Also includes examples of commonly-used rules.

CSS (V1)

CSS Cheat Sheet (V1)

A quick reference guide for CSS, listing selector syntax, properties, units and other useful bits of information.

PHP (V1)

PHP Cheat Sheet (V1)

I'm fed up with having to visit php.net to look things up. This A4 cheat sheet is designed to sit by your desk and make your life easier.