PHP Coding Standards

• Make names fit
• Avoid uppercase abbreviations
• use common terms like max, cnt, key, is, get, set
• follow PSR-2 for naming conventions
• classes - start with uppercase letter, and show have a prefix of 3-4 letters followed by an underscore to prevent naming conflicts
• Constants - all uppercase, words separated by _ underscore.
• Variable names - should be in camel case or use _ (underbars)
• Function names - C GNU conventions of all lower case with underbar as the word delimiter
• Indent - four spaces for each level
• Declaration blocks, all declarations should be aligned

Additional ways to standardize your code:

• Array element - underbar
• global variables - prepand with 'g'
• static variables - prepend with 's'