php - 无法为从数据库回显消息的 <td> 设置最大高度

Question

我正在我的网站中创建评论部分，我遇到了这个问题，php 代码中一切正常，但它不断增加 td 的高度，我尝试设置最大高度但没有有效，我想过让它只回应最后十条评论，但我不知道如何做到这一点。这不会是一个专业网站，只是高中的一项事件。

<tr ><td colspan="4"> 

    <?php
      $conexao = mysqli_connect("127.0.0.1","root","","db_tcc") or die ("Não foi possível se conectar com o servidor.");
      $varsql = "SELECT * FROM tb_comentarios WHERE estado='pe' ORDER BY id DESC";
      $carregar_comentarios = mysqli_query($conexao, $varsql);
      while ($linha = mysqli_fetch_array($carregar_comentarios))
      {
        $user = $linha["user"];
        $texto = $linha["texto"];
        $data = $linha["data"];
        echo "$user: $texto - $data<BR>";
      }
    ?>

  </td></tr>

Answer 1

I thought about making that it only echoes the ten last comments but i don't have any idea how to do this

要限制mysql查询的结果集，必须添加LIMIT子句:

$varsql = "SELECT * FROM tb_comentarios WHERE estado='pe' ORDER BY id DESC LIMIT 10";