Php get first and last day of month

- Php get first and last day of current month
- Php first and last day of month
- Php get first day of month
- Php get first day of month from date
- Php first and last day of previous month
- Php date get first and last day of month
- Php get first and last date of month
- Php get first working day of month
- Write a php script to get the first and last day of a month from a specified date
- Php date functions
- Current date in php