Milesian calendar and Easter computation in PHP 8.x

Cosmetic updates and test under PHP 8.2

Milesian calendar and Easter computation in PHP

Calendar converter between Milesian calendar and Julian day.
Computation of date of Easter.
Tested under PHP 5.4 in 2017-1m.

Last updates

V2.0

2019 update:

• intercalation rule for the Milesian calendar is same as for Gregorian

V2.1

• date range is the same as that of other calendars supported in PHP

V2.2

• No functional change, updated README

Milesian calendar and Easter computation in PHP

Calendar converter between Milesian calendar and Julian day.
Computation of date of Easter.
Tested under PHP 5.4 in 2017-1m.
V2.0 2019 update:

• intercalation rule for the Milesian calendar is same as for Gregorian
• limits are the same as those of other calendars supported in PHP

Milesian converter 2017-1m

Milesian from/to Julian day converter, and Eater computation, as tested under PHP 5.4 in 2017-1m.