php - 表头从 php 中的 for 循环重复

Question

我正在尝试从数据库创建排行榜。我将数据打印在列表中。当我尝试将此数据放入 html 表中时，标题在每次数据输入后重复出现。这是 for 循环导致的，但我不知道如何只打印一次标题，然后将数据插入每一行。任何帮助将不胜感激。代码和结果的屏幕截图如下。提前谢谢你。

    <?php
require_once 'header.php';
    // Send variables for the MySQL database class.
    $database = mysql_connect('localhost', 'root', 'password') or die('Could not connect: ' . mysql_error());
    mysql_select_db('robinsnest') or die('Could not select database');

    $query = "SELECT * FROM `members` ORDER by `quiz_score` DESC LIMIT 10";
    $result = mysql_query($query) or die('Query failed: ' . mysql_error());

    $num_results = mysql_num_rows($result);  

    for($i = 1; $i <= $num_results; $i++)
    {
         $row = mysql_fetch_array($result);
         echo "<table>
  <tr>
    <th>Position</th>
    <th>User Name</th>      
    <th>Score</th>
  </tr>
  <tr>
    <td>".$i."</td>
    <td>".$row['user']."</td>       
    <td>".$row['quiz_score']."</td>
  </tr>

</table>";
    }
    echo '<footer>
                <p class="pull-right"><a href="#">Back to top</a></p>
                <p>&copy; 2014 Company, Inc. &middot; <a href="#">Privacy</a> &middot; <a href="#">Terms</a></p>
            </footer>';
?>

结果是“每次循环用户名和分数后都会重复位置、用户名和分数标题”

Answer 1

从循环中删除 header 。

这样做:

<?php
require_once 'header.php';
    // Send variables for the MySQL database class.
    $database = mysql_connect('localhost', 'root', 'password') or die('Could not connect: ' . mysql_error());
    mysql_select_db('robinsnest') or die('Could not select database');

    $query = "SELECT * FROM `members` ORDER by `quiz_score` DESC LIMIT 10";
    $result = mysql_query($query) or die('Query failed: ' . mysql_error());

    $num_results = mysql_num_rows($result);  

    echo "<table>
          <tr>
          <th>Position</th>
          <th>User Name</th>      
           <th>Score</th>
           </tr>";

    for($i = 1; $i <= $num_results; $i++)
    {
         $row = mysql_fetch_array($result);

         echo "<tr>
              <td>".$i."</td>
              <td>".$row['user']."</td>       
              <td>".$row['quiz_score']."</td>
              </tr>";
    }

    echo "</table>";

    echo '<footer>
                <p class="pull-right"><a href="#">Back to top</a></p>
                <p>&copy; 2014 Company, Inc. &middot; <a href="#">Privacy</a> &middot; <a href="#">Terms</a></p>
            </footer>';
?>

让我知道更多帮助!!