3v4l.org

run code in 300+ PHP versions simultaneously
<?php function intdiv_2($a, $b){ return floor($a / $b); } function isBouncy($num) { if ($num < 100) { return false; } $ni = true; $nd = true; $lastDigit = $num % 10; $num = intdiv_2($num, 10); while($num != 0) { $digit = $num % 10; if ($digit > $lastDigit) { $nd = false; } else if ($digit < $lastDigit) { $ni = false; } $lastDigit = $digit; $num = intdiv_2($num, 10); } return !$ni && !$nd; } var_dump(isBouncy(0)); var_dump(isBouncy(10)); var_dump(isBouncy(345)); var_dump(isBouncy(321)); var_dump(isBouncy(384));
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
bool(false) bool(false) bool(false) bool(false) bool(true)

preferences:
241.49 ms | 404 KiB | 373 Q