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<?php $d1 = strtotime("00:08:27"); $d2 = strtotime("00:01:32"); $summ = $d1 + $d2; echo $d1 . "\n"; echo $d2 . "\n"; echo $summ - time(); echo gmdate("H:i:s", $summ - time()); //$date1 = new DateTime('00:08:27'); //$date2 = new DateTime('00:01:32'); //$diff = $date2->diff($date1); //print_r( $diff )
Output for 7.1.0 - 7.1.20, 7.2.0 - 7.2.6
1518304107 1518303692 151822630701:31:47

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