0

我有一个查询，当我打印一个表格时，它给了我类似以下的结果：

+---------------------------------------------------------------------+
|    ID      |    Name     |    Color      |     Size     |    Qty    |
+---------------------------------------------------------------------+
|    1       |    First    |    Green      |      S       |     1     |
|    2       |    First    |    Green      |      L       |     2     |
|    3       |    First    |    Green      |      XL      |     1     |
|    4       |    First    |    Red        |      M       |     2     |
|    5       |    First    |    Red        |      L       |     3     |
|    6       |    Second   |    Blue       |      S       |     1     |
|    7       |    Second   |    Blue       |      M       |     4     |
+---------------------------------------------------------------------+

现在我想做一个概述（在现实生活中这些是产品），有人可以单击按钮进行编辑或删除。我想用 foreach 循环或其他东西循环它并打印出如下内容：

+========================================================================+
|    Name     |    Color      |     Size     |    Qty    |    Action     |
+========================================================================+
|    First    |    Green      |      S       |     1     |  Edit|Delete  |
|             |               |      L       |     2     |  Edit|Delete  |
|             |               |      XL      |     1     |  Edit|Delete  |
+------------------------------------------------------------------------+
|    First    |    Red        |      M       |     2     |  Edit|Delete  |
|             |               |      L       |     3     |  Edit|Delete  |
+------------------------------------------------------------------------+
|    Second   |    Blue       |      S       |     1     |  Edit|Delete  |
|             |               |      M       |     4     |  Edit|Delete  |
+------------------------------------------------------------------------+

但不知何故，我无法理解如何编程这个循环。还是我应该更改查询？我希望有人能帮帮忙。如果您需要更多信息，请告诉我。

4

2 回答 2

0

您可以在数据库中执行其中的一些操作，这样可以更轻松地在代码中显示数据：

select 
    group_concat(ID) as id, 
    name, 
    color, 
    group_concat(size) as size, 
    group_concat(qty) as qty 
from 
    myTable
group by
    name,
    color

结果将如下所示：

ID     | name  | color | size   | qty
1,2,3  | First | Green | S,L,XL | 1,2,1
etc...

现在在您的代码中，这使得以您希望的方式输出变得更加容易。

echo "<table>";
while($row=someFetchFromDatabase($results))
{
    echo "<tr><td>".$row['name']."</td><td>".$row['color']."</td>";
    $temp=explode($row['size']);
    echo "<td>";
    foreach($temp as $val)
    {
        echo $val."<br>";
    }
    echo "</td>";
    $temp=explode($row['qty']);
    echo "<td>";
    foreach($temp as $val)
    {
        echo $val."<br>";
    }
    echo "</td>";
    $temp=explode($row['IDs']);
    echo "<td>";
    foreach($temp as $val)
    {
        echo "<a href='someLink.php?action=edit&ID=".$val."'>Edit</a> | <a href='someLink.php?action=delete&ID=".$val."'>Delete</a>";
    }
    echo "</td></tr>";
}
echo "</table>'
于 2012-09-26T10:25:51.917 回答
0

我不会对查询做任何事情。

In pseudo code (I don't speak PHP)...

variables $name = "", $colour = "";
for (every row)    
    if (row.name = $name) and (row.colour = $colour)
        display nothing for name and colour
    else
        display row.name
        display row.colour
        $name = row.name
        $colour = row.colour
于 2012-09-26T10:30:16.627 回答