3v4l.org

run code in 300+ PHP versions simultaneously
<?php $now = new DateTimeImmutable('now'); $months = []; $monthcnt = 0; for ($i = 1; $i <= 12; $i++) { if (($i % 3) == 0) { $monthcnt += 3; $minus = '-' . $monthcnt . ' months'; $pq3 = $now->modify($minus); var_dump($pq3->format('m')); // switch ($pq3->format('m')) // case var_dump($pq3->format('Y')); } }
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
string(2) "07" string(4) "2018" string(2) "04" string(4) "2018" string(2) "01" string(4) "2018" string(2) "10" string(4) "2017"
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 string(2) "07" string(4) "2018" string(2) "04" string(4) "2018" string(2) "01" string(4) "2018" string(2) "10" string(4) "2017"
preferences:
223.31 ms | 402 KiB | 284 Q