Home Backend Development PHP Tutorial 如何实现类别做标题,标题上面显示该类别上的某些字段内容

如何实现类别做标题,标题上面显示该类别上的某些字段内容

Jun 13, 2016 pm 01:22 PM
echo lt mysql quot

怎么实现类别做标题,标题下面显示该类别下的某些字段内容
应该是用嵌套循环来实现,但是我自己循环了几次,都是错误的,可能是外循环和内循环重复了:

PHP code
<!--

Code highlighting produced by Actipro CodeHighlighter (freeware)
http://www.CodeHighlighter.com/

-->
$result = mysql_query("SELECT p_class FROM Product group by p_class limit 40");//取得商品类别名称:p_class

 mysql_data_seek($result, 0);
  
    while ($row=mysql_fetch_row($result))
    {
      echo "
Copy after login
\n"; echo "\n"; for ($i=0; $i'; echo "$row[$i]"; echo ''; $result2 = mysql_query("SELECT * FROM Product where p_class=$row[$i] limit 0,4"); while ($row=mysql_fetch_row($result2)) { echo '
'; for ($i=0; $i"; }//内循环结束 echo '
'; }//外循环结束 } echo " \n"; } echo "\n"; mysql_free_result($result); mysql_close($conn); ?>




------解决方案--------------------
思路没有错,代码也基本正确
不过你的html代码有问题
你内层的表格,写在外层表格标记的外边,自然就看着乱七八糟了
------解决方案--------------------
仅供参考:
SQL code

mysql> select * from csdn_test4;
+----+--------+----------------------+
| id | type   | content              |
+----+--------+----------------------+
|  1 | 天文 | 天文 天文 天文 |
|  2 | 天文 | 天 天 天文       |
|  3 | 天文 | 文 文 天文       |
|  4 | 地理 | 地理 地理 地理 |
|  5 | 地理 | 地 地 地          |
|  6 | 地理 | 理 理 理          |
|  7 | 科技 | 科技 科技 科技 |
|  8 | 科技 | 科 科 科          |
|  9 | 科技 | 技 技 技          |
+----+--------+----------------------+
9 rows in set (0.00 sec)
<br><font color="#e78608">------解决方案--------------------</font><br>
Copy after login
探讨
太感激你了。
但是我真的看不懂,因为还有很多要修改的排版,比如我的数据表内字段数量是很多,这个页面需要显示的知识两三个字段。我不知道怎么修改了。
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