Php constant in class

- Php define constant in class
- Php declare constant in class
- Php constant variable in class
- Php constant array in class
- Php access constant in class
- Php use constant in class
- Php create constant in class
- Php constant exists in class
- Php constant in abstract class
- Php static constant in class
- Php set constant in class
- Php constant class name
- Php define global constant in class
- Php use global constant in class
- Php override constant in child class