判断姓名中是否有emoji表情

if (strlen($name) % 3 != 0){
    $name_arr = mb_str_split($name);
    foreach($name_arr as $k => $name){
        if (strlen($name) == 4){
            unset($name_arr[$k]);
        }
    }
    return implode('', $name_arr);
}