thinkphp修改字段内容有关问题

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Release: 2016-06-13 11:57:28
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thinkphp修改字段内容问题
   $Data = M($action); // 实例化Data数据模型
    $this->data = $Data->field('id,datupian,touxiang,content,nike,time')->select();

返回的二维数组 
比方说获取datupian的字段内容是www.baidu.com/22.jpg 是网络图片地址 我要file_get_content 这个字段内容  获取的内容重新覆盖原来的字段内容 怎么弄
------解决方案--------------------
什么意思???

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