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<?php $time = '2016-03-10 10:03:07'; $date_obj = new DateTime($time); for ($i = 0; $i < 10; $i ++) { $date_obj->add(new DateInterval("PT20S")); $time = $date_obj->format("H:m:s"); echo $time . "\n"; }
Output for 5.5.0 - 5.5.37, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
10:03:27 10:03:47 10:03:07 10:03:27 10:03:47 10:03:07 10:03:27 10:03:47 10:03:07 10:03:27

preferences:
139.91 ms | 404 KiB | 220 Q