Cheat Sheet
A cheat sheet is a concise, condensed reference document that summarizes the essential syntax, commands, or rules of a language, tool, or process on a single page or a short list, meant to be scanned quickly rather than read start to finish like a manual. Unlike full documentation, which aims to be complete and explain the reasoning behind each feature, a cheat sheet deliberately leaves out context and edge cases to keep only what a reader is most likely to need to look up in the moment, often organized as tables, short code snippets, or bullet lists grouped by topic. In the PHP and web security world, the OWASP Cheat Sheet Series is a widely cited example, offering focused, actionable guidance on specific vulnerability classes, such as cross-site scripting, injection, or insecure direct object references, and it is referenced throughout this dictionary as further reading for exactly that reason. Cheat sheets are useful both for newcomers getting oriented in an unfamiliar language or tool and for experienced developers who need a fast reminder of syntax or a checklist they do not use often enough to memorize.