3v4l.org

run code in 300+ PHP versions simultaneously
<?php foreach('abcde' as $k => $v) { echo $k . ' => ' . ord($v) . PHP_EOL; }
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Warning: foreach() argument must be of type array|object, string given in /in/0V0Al on line 3
Output for 4.3.0 - 4.3.10, 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
Warning: Invalid argument supplied for foreach() in /in/0V0Al on line 3
Output for 4.3.11

preferences:
266.21 ms | 401 KiB | 337 Q