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<?php $dates = [ null, new DateTime("now"), null, new DateTime("yesterday"), ]; $minDate = null; foreach ($dates as $date) { if ($date && (!$minDate || $date < $minDate)) { $minDate = $date; } } var_export($minDate);
Output for git.master, git.master_jit, rfc.property-hooks
\DateTime::__set_state(array( 'date' => '2020-05-14 00:00:00.000000', 'timezone_type' => 3, 'timezone' => 'Europe/Amsterdam', ))

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