Question

我有一张名为＆＃39; vehicle＆＃39;在CodeIgniter项目中。

+----+---------+--------+
| id | name    | make   |
+----+---------+--------+
|  1 | Corolla | Toyota |
|  2 | Parado  | Toyota |
|  3 | Sunny   | Nissan |
|  4 | Maxima  | Nissan |
|  5 | Premoio | Toyota |
+----+---------+--------+

如何从中获取多维数组，如下所示：

Array
(
    [Toyota] => Array
        (
            [1] => Corolla
            [2] => Parado
            [5] => Premio
        )

    [Nissan] => Array
        (
            [3] => Sunny
            [4] => Maxima
        )
)

Answer 1

假设您可以像$rows变量一样从数组中的表中获取所有记录。

$rows = [
    ['id' => 1, 'name' => 'Corolla', 'make' => 'Toyota'],
    ['id' => 2, 'name' => 'Parado', 'make' => 'Toyota'],
    ['id' => 3, 'name' => 'Sunny', 'make' => 'Nissan'],
    ['id' => 4, 'name' => 'Maxima', 'make' => 'Nissan'],
    ['id' => 5, 'name' => 'Premoio', 'make' => 'Toyota']
];

$result = [];
foreach ($rows as $row) {
    $result[$row['make']][$row['id']] = $row['name'];
}

只需在一个循环中即可实现。我希望它会有所帮助。

CodeIgniter 3.x

$query = $this->db->get('vehicles');

$result = [];
if($this->db->count_all_results() > 0)
{
    foreach ($query->result_array() as $row)
    {
        $result[$row['make']][$row['id']] = $row['name'];
    }
}

echo '<pre>';
print_r($result);
echo '</pre>';

Answer 2

这样的事情：

$cars = array();

$unique_makes = $this->db->distinct('make')->get('vehicles')->result();

foreach($unique_makes as $make){
    $models = $this->db->where('make', $make)->get('vehicles')->result();
    $cars[$make] = $models;
}

Answer 3

我使用以下代码实现结果。杰里米杰克逊的回答让我知道我该怎么做才能实现这一目标。但他的代码不起作用。无论如何，谢谢Jeremy。

这是我的代码：

ActiveSheet.ListObjects("CURRENT_ACCOUNT_QUERY_0001").ShowHeaders = False

从CodeIgniter中的数据创建多维数组

3 个答案: