3v4l.org

run code in 300+ PHP versions simultaneously
<?php $names = array( '01' => 'January', '02' => 'February', '03' => 'March', '04' => 'April', '05' => 'May', '06' => 'June', '07' => 'July', '08' => 'August', '09' => 'September', '10' => 'October', '11' => 'November', '12' => 'December' ); $_POST["finalmonth"] = 3; if (!isset($names[$_POST["finalmonth"]])) echo 'Unknown month'; else echo $names[$_POST["finalmonth"]]; ?>
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 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 - 8.3.6
Unknown month

preferences:
225.54 ms | 406 KiB | 357 Q