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<?php $dt = new DateTime('2019-01-31'); $day = $dt->format('d'); $months = 0; for ($i=1; $months < 10; $i++) { $next = clone $dt; $next->add(new DateInterval("P{$i}M")); if ($next->format('d') != $day) continue; echo $next->format('Y-m-d') ."\n"; $months++; }
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 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0 - 8.5.1
2019-03-31 2019-05-31 2019-07-31 2019-08-31 2019-10-31 2019-12-31 2020-01-31 2020-03-31 2020-05-31 2020-07-31
Output for 8.4.15
/bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.

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