3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump( mb_convert_encoding( $bin = hex2bin("d0d1ecb5dac2adfb4cd4ede7f4"), "UTF-8", "CP51932" ), mb_check_encoding($bin, "CP51932") );
Output for 8.1.0 - 8.1.30, 8.2.0 - 8.2.24, 8.3.0 - 8.3.12
string(19) "佰豕畋∩L梦苳" bool(true)
Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30
string(19) "佰豕畋∩L梦苳" bool(false)
preferences:
71.61 ms | 407 KiB | 5 Q