--TEST-- Test DateTime::setISODate() function : basic functionality --FILE-- <?php /* Prototype : public DateTime DateTime::setISODate ( int $year , int $week [, int $day ] ) * Description: Set a date according to the ISO 8601 standard - using weeks and day offsets rather than specific dates. * Source code: ext/date/php_date.c * Alias to functions: date_isodate_set */ echo "*** Testing DateTime::setISODate() : basic functionality ***\n"; //Set the default time zone date_default_timezone_set("Europe/London"); // Create a deate object $datetime = new DateTime("2009-01-30 17:57:32"); // Which month is week 40 ? $datetime->setISODate(2008, 40); echo "Week 40 of 2009 is in \"" . $datetime->format("F") . "\"\n"; // What date is week week 30 day 3 ? $datetime->setISODate(2009, 30, 3); echo "Week 30 day 3 of 2009 is \"" . $datetime->format("D M j") . "\"\n"; // What date was is last year ? $datetime->setISODate(2008, 30, 3); echo "..same day last year was \"" . $datetime->format("D M j") . "\"\n"; ?> ===DONE=== --EXPECTF-- *** Testing DateTime::setISODate() : basic functionality *** Week 40 of 2009 is in "September" Week 30 day 3 of 2009 is "Wed Jul 22" ..same day last year was "Wed Jul 23" ===DONE===