php - 在子组中分组(使用 php 循环)

Question

我曾经读过一个关于“如何在 php 中将结果分组为子组”的问题(在本论坛中)。我遇到了一个与问题几乎相同的问题。

我有一个像这样的 MySQL 表:

+----------+----------+----------+--------------+-------+-------+--------+
|   type   |     ID   | customer |    address   | bill  |service| total  |
+----------+----------+----------+--------------+-------+-------+--------+
|water     |A1        |jhon      |Samrat street |100    |50     |150     |
|electric  |A1        |jhon      |Samrat street |30     |15     |45      |
|electric  |A2        |ana       |zero street   |20     |10     |30      |
|water     |A3        |billy     |west street   |40     |60     |100     |
+----------+----------+----------+--------------+-------+-------+--------+

我想在通知信中显示表格记录，像这样:

约翰(A1)

萨姆拉特街

+---------+-------+----------+---------+
|type     |bill   |service   |total    |
+---------+-------+----------+---------+
|water    |100    |50        |150      |
|electric |30     |15        |45       |
+---------+-------+----------+---------+
|                 grand total|600      |
+----------------------------+---------+

分析(A2)

零街

+---------+-------+----------+---------+
|type     |bill   |service   |total    |
+---------+-------+----------+---------+
|electric |20     |10        |30       |
+---------+-------+----------+---------+
|                 grand total|30       |
+----------------------------+---------+

比利 (A3)

西街

+---------+-------+----------+---------+
|type     |bill   |service   |total    |
+---------+-------+----------+---------+
|water    |40     |60        |100      |
+---------+-------+----------+---------+
|                 grand total|100      |
+----------------------------+---------+

实际上，我是使用 FPDF 和 codeigniter 制作外观的。但我假设它是在 PHP 页面中制作的，因为我只想知道如何使用 foreach 方法(php pure 或 codeigniter)进行循环过程。

我希望有人能帮助我。 谢谢你的好意..^^'

Answer 1

试试这个

$query = mysql_query('SELECT * FROM table GROUP BY ID');

foreach (mysql_fetch_object($query) as $row){

    $data .= '<div>';

    $data .= '<p>' . $row->customer . '(' . $row->ID . ')' . '</p>';

    $data .= '<p>' . $row->address . '</p>';

    $data .= '<table>';

    $query1 = mysql_query('SELECT * FROM table WHERE ID = ' . $row->ID . ' AND customer = "' . $row->customer . '" AND address = "' . $row->address . '"');

    $data .= '
                <tr>
                    <td>type</td>
                    <td>bill</td>
                    <td>service</td>
                    <td>total</td>
                </tr>
             ';

    $total = 0;                //variable initialized for grand total    
    foreach(mysql_fetch_object($sql1) as $row1){

    $data .= '
                <tr>
                    <td>' . $row->type . '</td>
                    <td>' . $row->bill . '</td>
                    <td>' . $row->service . '</td>
                    <td>' . $row->total . '</td>
                </tr>
             ';

    $total += $row->total;     //adding the total amount for the grand total

    }

    $data .= '
                <tr>
                    <td colspan="2" align="right">Grand Total</td>
                    <td colspan="2" align="right">' . $total . '</td>
                </tr>
             ';            //This displays the grand total

    $data .= '</table>';

    $data .= '</div>';

}

此外，您还可以浏览User Guide of CodeIgniter寻求进一步帮助