Php static class var

- Php static class variables
- Php class static variables
- Php static class variable initialization
- Php access static class variable
- Php static function access class variable
- Php static function get class variable
- Php class private static variable
- Php call static method variable class name
- Php class set static variable
- Php static variable in class method
- Php var_dump static class
- Php use class variables in static function
- Php get class variable in static method
- Php class public static variable