分享一段处理多维数组，unidecode的中文的字符的代码

Example:

<?php
$params = '{

    "country":"\\u4e2d\\u56fd",

    "items0":{

        "message":"\\u6211\\u4f1f\\u5927\\u7684\\u7956\\u56fd",

        "remark":["\\u6211\\u7231\\u6211\\u7684\u7956\\u56fd"]

    },

    "items1":{

        "message":"\\u6211\\u4f1f\\u5927\\u7684\\u7956\\u56fd",

        "remark":["\\u6211\\u7231\\u6211\\u7684\u7956\\u56fd"]

    }

}';
function unicodeDecode(&$params){

  if(is_array($params)){

  foreach ($params as $key => &$value){

  $params[$key] = $this->unicodeDecode($value);

  }

  return $params;

  }else{

  return preg_replace_callback('/\\\\u([0-9a-fA-F]{4})/i', function($match){

  return mb_convert_encoding(pack('H*', $match[1]), 'UTF-8', 'UCS-2BE');

  }, $params);

  }

}

$this->unicodeDecode($params);
print_r($params);

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