解决办法:将3个字节的特殊字符与emoji表情替换掉即可。
$nickname = preg_replace('/xE0[x80-x9F][x80-xBF]'.'|xED[xA0-xBF][x80-xBF]/S','?', $nickname );
$nickname = preg_replace('/\xEE[\x80-\xBF][\x80-\xBF]|\xEF[\x81-\x83][\x80-\xBF]/', '', $nickname);
解决办法:将3个字节的特殊字符与emoji表情替换掉即可。
$nickname = preg_replace('/xE0[x80-x9F][x80-xBF]'.'|xED[xA0-xBF][x80-xBF]/S','?', $nickname );
$nickname = preg_replace('/\xEE[\x80-\xBF][\x80-\xBF]|\xEF[\x81-\x83][\x80-\xBF]/', '', $nickname);