求教，关于php函数以及初级的有关问题_PHP

求教，关于php函数以及初级的问题
我刚涉及到php ，所以在这里面就是一菜鸟，所以来请教一下，现在还在看关于PHP的书籍，
遇到以下代码，有点疑问
<td width="891" align="left" valign="middle" class="table_title">本项目最近10条投资记录</td>
                </tr>
              </table></td>
          </tr>
          <tr>
            <td><table width="950" border="0" cellspacing="0" cellpadding="0" style="border:1px solid #CCC; border-top:0;">
                <tr>
                  <td align="center" valign="top" style=" padding-bottom:5px;"><table  class="tdBordert" border=0 cellSpacing=0 width="100%">
                      <THEAD>
                        <tr style="background-color:#E4E4E4">
                          <td height="25" align="left" valign="middle">　认购人
                            </th>
                          <td align="left" valign="middle">认购份数
                            </th>
                          <td align="left" valign="middle">认购金额
                            </th>
                          <td align="left" valign="middle">当前利率
                            </th>
                          <td align="left" valign="middle">认购期限
                            </th>
                          <td align="left" valign="middle">认购方式
                            </th>
                          <td align="left" valign="middle">状态
                            </th>
                        </tr>
                      </THEAD>
                      <volist name="investinfo" id="vi">
                        <tr>
                          <td height="25" align="left" valign="middle">　{$vi.user_name|hidecard=###,4}</td>
                          <td align="left" valign="middle">{$vi.transfer_num}份</td>
                          <td align="left" valign="middle">{$vi.investor_capital|Fmoney=###}元</td>
                          <td align="left" valign="middle">{$vo.borrow_interest_rate}%/年</td>