PHP offers a powerful way to convert dates from one calendar system to another. In order to do this, you must first convert a date into a Julian Day Count. You then convert that integer back into a date according to another calendar.
These functions require the calendar extension. You may load it dynamically, or compile it into PHP.
Use easter_date to get the timestamp for midnight on Easter for a given year.
<? print(easter_date(2000)); ?>
The easter_days function returns the number of days after March 21 on which Easter falls for the given year.
<? print(easter_days(2000)); ?>
The frenchtojd ...