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<?php $dt = new DateTime('2019-01-31'); $day = $dt->format('d'); for ($i=0; $i < 10; $i++) { $dt->modify('first day of this month')->add(new DateInterval('P1M')); if ($dt->format('t') < $day) { continue; } $final = $dt->format('Y-m-' . $day); echo $final."\n"; }
Output for 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
2019-03-31 2019-05-31 2019-07-31 2019-08-31 2019-10-31

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117.91 ms | 1390 KiB | 4 Q