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<?php $start = new DateTimeImmutable('2012-01-01'); $end = new DateTimeImmutable('2014-12-31'); while($start <= $end) { $nextdate = $start->modify('+1 month')->format('Y-m-d'); $prevdate = $start->modify('-1 month')->format('Y-m-d'); echo $prevdate.'<br>'; echo $nextdate.'<br>'; $start = $nextdate; }
Output for git.master, git.master_jit, rfc.property-hooks
2011-12-01<br>2012-02-01<br> Fatal error: Uncaught Error: Call to a member function modify() on string in /in/DiPAg:5 Stack trace: #0 {main} thrown in /in/DiPAg on line 5
Process exited with code 255.

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