Timestamp problems in PHP calendar

[Anon]

HI everyone,

I'm trying to put together a PHP calendar that works for any date in the 20 and 21 centuries and it's working fine for dates between 1901 and 2037, but not all dates. The problem is that a valid timestamp only covers dates between 1901 and 2037 (because of the limitations of a 32 bit integer).

Does anyone know how to get it to work for any dates in the 20 and 21 centuries?

Any clues and suggestions much appreciated.

Thanks in anticipation...

Regards,

Bogdan