3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(mb_check_encoding(hex2bin("1b244224220f"), "JIS"));
Output for 8.0.1 - 8.0.30, 8.1.18 - 8.1.33, 8.2.5 - 8.2.29, 8.3.0 - 8.3.26, 8.4.1 - 8.4.14
bool(false)
Output for 8.1.0 - 8.1.17, 8.2.0 - 8.2.4
bool(true)
preferences:
99.23 ms | 407 KiB | 5 Q