3v4l.org

run code in 300+ PHP versions simultaneously
<?php $t=date('Y'); $q = date('m'); for($e=$q;$e<=($q+2);$e++){ $ren = $t.'-'. sprintf("%'.02d", $e); var_dump($ren); } $begin = new DateTime( '2016-01-11' ); $numMonths = 3; for($i=0; $i<$numMonths; $i++) { var_dump($begin->modify( '+1 month' )->format("Y-m-d")); }
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 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 - 8.1.31, 8.2.0 - 8.2.27, 8.3.0 - 8.3.15, 8.4.1 - 8.4.2
string(7) "2016-01" string(7) "2016-02" string(7) "2016-03" string(10) "2016-02-11" string(10) "2016-03-11" string(10) "2016-04-11"
preferences:
104.94 ms | 408 KiB | 5 Q