- putenv: documentation ( source)
- ini_set: documentation ( source)
- date: documentation ( source)
<?php
putenv('TZ=UTC');
ini_set("hhvm.enable_zend_compat", 1);
echo date("Y-m-d", easter_date(2000))."\n";
echo date("Y-m-d", easter_date(2001))."\n";
echo date("Y-m-d", easter_date(2002))."\n";
echo date("Y-m-d", easter_date(1492))."\n";
?>