Online PHP editor | refs for t0o47

<?php function count_digits($digit, $base) { // TODO: add type validation return $digit >= 10 ? 1 + count_digits($digit / $base) : 1; } $digit = 1554; $tries = 10000; var_dump(count_digits($digit)); $start = microtime(true); for ($i = 0; $i < $tries; $i++) { count_digits($digit); } echo (microtime(true) - $start).PHP_EOL; $start = microtime(true); for ($i = 0; $i < $tries; $i++) { strlen($digit); } echo (microtime(true) - $start);