3v4l.org

run code in 300+ PHP versions simultaneously
<?php for ($i = 0; $i < 11111; $i++) { $match = preg_match('/([1-9]\d+|[2-9])\d\d/', $i); if ($i <= 200 && $match) { echo 'error, matched ', $i, PHP_EOL; } else if ($i > 200 && !$match) { echo 'error, did not match ', $i, PHP_EOL; } }

preferences:
85.79 ms | 402 KiB | 5 Q