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run code in 300+ PHP versions simultaneously
<?php $requests = [-11, -1, 0, 1, 2]; foreach ($requests as $request) { $d = new DateTime('first day of this month'); $d->modify("$request month"); echo $d->format('Y') . ' & ' . $d->format('n') . "\n"; }
Output for git.master, git.master_jit, rfc.property-hooks
2020 & 12 2021 & 10 2021 & 11 2021 & 12 2022 & 1

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