3v4l.org

run code in 500+ PHP versions simultaneously
<?php echo mb_detect_encoding('abc', 'UTF8, ASCII');
Output for 8.1.0 - 8.1.34, 8.2.0 - 8.2.32, 8.3.0 - 8.3.33, 8.4.1 - 8.4.24, 8.5.0 - 8.5.9
UTF-8
preferences:
56.92 ms | 1028 KiB | 4 Q