- Output for 8.1.0 - 8.1.15, 8.2.0 - 8.2.2
- string(4) "?硟" bool(false) string(6) "3fb383"
- Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.26
- string(5) "ÿ硟" bool(false) string(12) "81308b37b383"
<?php
var_dump(
$conv = mb_convert_encoding(
$bin = hex2bin("ffb383"),
"UTF-8",
"GB18030"
),
mb_check_encoding($bin, "GB18030"),
bin2hex(mb_convert_encoding($conv, "GB18030", "UTF-8"))
);