如何合并多维数组cakephp

我只是使用cakePhp的函数query（）。查询将返回类似以下内容的数组：

array(
    (int) 0 => array(
        'cate' => array(
            'date' => '2016-12-05',
        ),
        'cate_detail' => array(
            'rel_data_category' => '11'
        ),
        'cate_item' => array(
            'price' => '150.000'
        )
    ),
    (int) 1 => array(
        'cate' => array(
            'date' => '2016-12-05',
        ),
        'cate_detail' => array(
            'rel_data_category' => '10'
        ),
        'cate_item' => array(
            'price' => '250.000'
        )
    ),
    (int) 2 => array(
        'cate' => array(
            'date' => '2016-12-06',
        ),
        'cate_detail' => array(
            'rel_data_category' => '10'
        ),
        'cate_item' => array(
            'price' => '250.000'
        )
    )
)

array(
    (int) 0 => array(
        'cate' => array(
            'date' => '2016-12-05',
        ),
        'cate_detail' => array(
            (int) 0 => array (
                'rel_data_category' => '11',
                'price' => '150.000'
            ),
            (int) 1 => array(
                'rel_data_category' => '10',
                'price' => '250.000'
            )
        )
    ),
    (int) 1 => array(
        'cate' => array(
            'date' => '2016-12-06',
        ),
        'cate_detail' => array(
            (int) 0 => array (
                'rel_data_category' => '10'
                'price' => '250.000'
            )
        )
    )
)

现在，我想检查数组是否具有相同的

cate.date

将合并数组（在本例中是数组的元素0,1）。输出如下内容：

array(
    (int) 0 => array(
        'cate' => array(
            'date' => '2016-12-05',
        ),
        'cate_detail' => array(
            'rel_data_category' => '11'
        ),
        'cate_item' => array(
            'price' => '150.000'
        )
    ),
    (int) 1 => array(
        'cate' => array(
            'date' => '2016-12-05',
        ),
        'cate_detail' => array(
            'rel_data_category' => '10'
        ),
        'cate_item' => array(
            'price' => '250.000'
        )
    ),
    (int) 2 => array(
        'cate' => array(
            'date' => '2016-12-06',
        ),
        'cate_detail' => array(
            'rel_data_category' => '10'
        ),
        'cate_item' => array(
            'price' => '250.000'
        )
    )
)

array(
    (int) 0 => array(
        'cate' => array(
            'date' => '2016-12-05',
        ),
        'cate_detail' => array(
            (int) 0 => array (
                'rel_data_category' => '11',
                'price' => '150.000'
            ),
            (int) 1 => array(
                'rel_data_category' => '10',
                'price' => '250.000'
            )
        )
    ),
    (int) 1 => array(
        'cate' => array(
            'date' => '2016-12-06',
        ),
        'cate_detail' => array(
            (int) 0 => array (
                'rel_data_category' => '10'
                'price' => '250.000'
            )
        )
    )
)

---

请帮忙

您将需要遍历结果，并使用所需格式的数据构建一个新数组。可以使用将日期映射到索引，以便可以组合日期的数据

例如：-

// Get out all the dates available and then flip the array so that we have a map of dates to indexes
$dates = Hash::extract($results, '{n}.cate.date');
$datesMap = array_flip($dates);
// Define an empty array that we will store the new merged data in
$data = [];
// Loop through the query results and write to the $data array using the map of dates
foreach ($results as $result) {
    $key = $datesMap[$result['cate']['date']];
    $data[$key]['cate'] = $result['cate'];
    $data[$key]['cate_detail'][] = [
        'rel_data_category' => $result['cate_detail']['rel_data_category'],
        'price' => $result['cate_item']['price']
    ];
}

---

cate_total

？这个指数从哪里突然出现在你想要的输出中？它不在你的输入中。另外，希望输出有一些错位的报价检查和PractifyYep，我会编辑我的文章！另外，如果我的数组有

item.code

，我想检查

是否（item.code&&cate.date）有相同的值

。有没有办法让我检查一下@drmonkeyninja@longhoangvan我不确定您希望它看起来如何，但是您应该能够使用一些if语句来开发我上面的示例代码，也许可以处理您的情况。