3v4l.org

run code in 300+ PHP versions simultaneously
<?php function asterisk($password) { $count = min(strlen($password), 4); $passwordAsterisk = str_repeat('*', $count) . substr($password, $count); echo $password . ' => ' . $passwordAsterisk . PHP_EOL; return $passwordAsterisk; } asterisk('abcdef'); asterisk('abc'); asterisk('');
Output for 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
abcdef => ****ef abc => *** =>

preferences:
147.08 ms | 407 KiB | 5 Q