3v4l.org

run code in 500+ PHP versions simultaneously
<?php var_dump(mb_check_encoding(hex2bin("1b244224220f"), "JIS"));
Output for 8.1.0 - 8.1.17, 8.2.0 - 8.2.4
bool(true)
Output for 8.0.1 - 8.0.30, 8.1.18 - 8.1.34, 8.2.5 - 8.2.34, 8.3.0 - 8.3.35, 8.4.1 - 8.4.26, 8.5.0 - 8.5.11
bool(false)
preferences:
35.9 ms | 1150 KiB | 15 Q