3v4l.org

run code in 300+ PHP versions simultaneously
<?php $primes = [1,2,3,5,7,11,13,17]; foreach ($primes as $prime) { echo $prime. PHP_EOL; }
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.6 - 7.2.33, 7.3.16 - 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
1 2 3 5 7 11 13 17
preferences:
151.92 ms | 404 KiB | 182 Q