Whether you are just starting out with WordPress or you are a seasoned developer, it’s always handy to have a reference you can refer to when you can’t quite remember how to access one of the built-in functions or the correct syntax for The Loop. The following are 5 of the best cheat sheets I’ve come across. Print them out and pin them to your notice board!
1. The Loop Cheat Sheet (bueltge.de)
2. Complete WordPress Cheat Sheet (ekinertac.com)
3. Theme Development Cheat Sheet (wptoy.com)
4. WordPress Infographic Cheat Sheet (smashinghut.com)
5. Another Complete WordPress Cheat Sheet (onextrapixel.com)
Do let me know if you come across any better ones.