phpcms替换来源

//替换来源：pc标签里面必须加moreinfo="1"不加会调不出来源

{pc:content action="lists" catid="12" order="id ASC" num="4" moreinfo="1"}
        {loop $data $key $val}
        {php list($val[copyfrom]) = explode('|', $val['copyfrom'])}
   <div class="row">

     <div class="col-sm-4">
        <a href="{$val['url']}"><img src="{$val['thumb']}" class="img-responsive xm_pic" /> </a>
        </div>
        <div class="col-sm-8">
        <div class="ry_info">
            <h4><span class="ry_sp">新闻名称：</span>{$val['title']}</h4>//标题
            </div>
            <div class="ry_info">
            <span class="ry_sp">新闻简介：</span>{$val['description']}//摘要
            </div>
            <div class="ry_info">
            <span class="ry_sp">作者：</span>{$val[copyfrom]}//来源

            </div>
            <div class="ry_info">
            <span class="ry_sp">时间：</span>{date('Y-m-d',$val[inputtime])}//替换时间
            </div>
            </div>
       </div>
    <hr />
    {/loop}
        {/pc}