3v4l.org

run code in 300+ PHP versions simultaneously
<?php function getCharacter($index) { $chars = "0123456789ABCDEFGHIJKLMOPQRSTUVWabcdefghijklmnopqrstuvw"; $c = ord(substr($chars, $index % strlen($chars))); //return ord(substr($chars, ($index << $c) % strlen($chars))); return ($index << $c) & 0xffffff; } function main() { $array = array(176, 52, 608, 855); foreach ($array as $value) { echo "$value: " . getCharacter($value) . "\n"; } } main();
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 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
176: 0 52: 0 608: 0 855: 0
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.25
176: 704 52: 0 608: 0 855: 12582912
preferences:
279.69 ms | 404 KiB | 355 Q