3v4l.org

run code in 300+ PHP versions simultaneously
<?php $input = ['1, 2, 3, 4, 5', 'test', 3, '100, a, test']; foreach ($input as $item) { if (is_string($item)) { foreach (explode(',', $item) as $i) { if (is_numeric($i)) { echo trim($i) . PHP_EOL; } } } }
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 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
1 2 3 4 5 100
preferences:
139.95 ms | 408 KiB | 5 Q