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<?php $dt = new DateTime; for ($w = 52; $w <= 54; $w++) { $dt->setISODate(2013, $w); print_r($dt); echo $dt->format('Y W') . "\n\n"; }
Output for git.master
DateTime Object ( [date] => 2013-12-23 13:03:24.003686 [timezone_type] => 3 [timezone] => Europe/Amsterdam ) 2013 52 DateTime Object ( [date] => 2013-12-30 13:03:24.003686 [timezone_type] => 3 [timezone] => Europe/Amsterdam ) 2013 01 DateTime Object ( [date] => 2014-01-06 13:03:24.003686 [timezone_type] => 3 [timezone] => Europe/Amsterdam ) 2014 02
Output for git.master_jit
DateTime Object ( [date] => 2013-12-23 13:03:24.003889 [timezone_type] => 3 [timezone] => Europe/Amsterdam ) 2013 52 DateTime Object ( [date] => 2013-12-30 13:03:24.003889 [timezone_type] => 3 [timezone] => Europe/Amsterdam ) 2013 01 DateTime Object ( [date] => 2014-01-06 13:03:24.003889 [timezone_type] => 3 [timezone] => Europe/Amsterdam ) 2014 02
Output for rfc.property-hooks
DateTime Object ( [date] => 2013-12-23 13:03:24.003860 [timezone_type] => 3 [timezone] => Europe/Amsterdam ) 2013 52 DateTime Object ( [date] => 2013-12-30 13:03:24.003860 [timezone_type] => 3 [timezone] => Europe/Amsterdam ) 2013 01 DateTime Object ( [date] => 2014-01-06 13:03:24.003860 [timezone_type] => 3 [timezone] => Europe/Amsterdam ) 2014 02

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