一段Unicode转中文的代码

<?php
$a = '["u8d27u68af","u505cu8f66u4f4d","u6696u6c14","u6276u68af","u4e0au6c34","u4e0bu6c34","u6392u70df","u6392u6c61","u7ba1u7164","380V","u53efu660eu706b","u5916u6446u533a"]';

$b = json_decode($a);
$array = [];
foreach($b as $k=>$v){
    $arr = explode('u',$v);
    $arr = array_slice($arr,1,count($arr));
    foreach($arr as $k=>$v){
        $arr[$k] = "\u".$v;
    }
    $str = implode('', $arr);
    $array[] = $str;
}
    //Unicode转汉字
foreach($array as $k=>$v){
    $a = decodeUnicode($v);
    $array[$k] = $a;
}
var_dump($array);

function decodeUnicode($str)

{

    return preg_replace_callback('/\\\\u([0-9a-f]{4})/i',
        function ($matches) {
            return mb_convert_encoding(pack("H*", $matches[1]), "UTF-8", "UCS-2BE");
        },

        $str);

}