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<?php $today = new Datetime('today - 1 second'); var_dump($today->format(DATETIME::ATOM)); $expirationDate = $today->add(new DateInterval('P1M')); var_dump($expirationDate->format(DATETIME::ATOM));
Output for git.master, git.master_jit, rfc.property-hooks
string(25) "2019-02-09T23:59:59+01:00" string(25) "2019-03-09T23:59:59+01:00"

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