数组转换

form表单提交的数组

 期望的效果（横向为一组）

 附代码：

$list = input('list/a');
if ( $list ) {
    $update = $spec = [];
    //规格
    foreach ( $list as $k=>$v ) {
          foreach ( $v as $kk=> $vv ) {
                $spec[$kk][$k] = $vv;
            } 
      }
}

<div class="layui-form-list " >
  <div class="layui-form-item" style="margin-bottom: 0">
    <input type="hidden" name="list[goods_id][]" value="{$v.goods_id}" />
    <div class="layui-inline">
      <label class="layui-form-label">规格</label>
      <div class="layui-input-inline">
        <input  type="text" name="list[spec_name][]" lay-verify="required" value="{$v.spec_name|default=''}" autocomplete="off" class="layui-input">
      </div>
    </div>
    <div class="layui-inline">
      <label class="layui-form-label">价格</label>
      <div class="layui-input-inline">
        <input  type="text" name="list[spec_price][]" lay-verify="required" value="{$v.goods_price|default=''}"  autocomplete="off" class="layui-input">
      </div>
    </div>
    <div class="layui-inline" style="left:20px">
      <label class="layui-form-label">上传文件</label>
      <div class="layui-input-block">
        <input type="text" name="list[spec_file][]" autocomplete="off" value="{$v.spec_file|default=''}"  placeholder="请输入标题" class="layui-input">
        <input type="file"  name="file" autocomplete="off"  placeholder="请输入标题" class="layui-input ggFileUpload">
        <em class="fileName"></em>
      </div>
    </div>
  </div>
</div>