3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str2 = hex2bin("301854aac00444dedfc6bdee"); echo mb_detect_encoding($str2);
Output for 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.3.0 - 8.3.7
UTF-8
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18
preferences:
154.86 ms | 402 KiB | 218 Q