Question

我从数据库中获取了这种类型的数组:(我无法更改收到的数据类型，因为它来自外部源）

Array
(
[0] => Es\Result Object
    (
        [_hit:protected] => Array
            (
                [_index] => website
                [_type] => structure
                [_id] => 8
                [_score] => 0.625
                [_source] => Array
                    (
                        [name] => Test1
                        [locality] => Array
                            (
                                [locality] => Bologna
                                [sign] => BO
                                [province] => Array
                                    (
                                        [province] => Bologna
                                        [region] => Array
                                            (
                                                [region] => Emilia Romagna
                                            )

                                    )

                            )
                    )
            )
    )
[1] => Elastica\Result Object
    (
        [_hit:protected] => Array
            (
                [_index] => website
                [_type] => structure
                [_id] => 6
                [_score] => 0.625
                [_source] => Array
                    (
                        [name] => Test2
                        [locality] => Array
                            (
                                [locality] => Bologna
                                [sign] => BO
                                [province] => Array
                                    (
                                        [province] => Bologna
                                        [region] => Array
                                            (
                                                [region] => Emilia Romagna
                                            )

                                    )

                            )
                    )

            )

    )
    ......

我输入一个json对象值“locality”并计算有多少“locality”相等，例如：

foreach ($results as $result) {
    $source = $result->getSource();
    $locality = $source['locality']['locality'];
    $dataLocality[] = array(
        'type'    => 'locality',
        'label'   => $locality,
        'count'   => 1, //How to increase the count here?
    );
}

我试图把所有东西都放在一个循环中，但我无法正确计算这些值。

有办法做到这一点吗？

修改

这应该是我得到的结果：

让我说我得到的阵列有3个“地点”：

2“foo”

1“bar”

$dataLocality = 
Array
(
   [0] => Array
       (
           [type] => 'locality'
           [locality] => 'foo'
           [count] => 2
       )
   [1] => Array
       (
           [type] => 'locality'
           [locality] => 'bar'
           [count] => 1
       )
)

Answer 1

$ locality的值是否存在于数组中？如果不是，则将其存储为1.如果是，则将1添加到计数中。

foreach ($results as $result) {
    $source = $result->getSource();
    $locality = $source['locality']['locality'];
    // Manually specify the array key. This makes life much easier down the road,
    // especially when you need to find items in the array.
    if ( !isset($dataLocality[$locality]) ) {
        $dataLocality[$locality] = array('type'    => 'locality',
                                         'label'   => $locality,
                                         'count'   => 1);
    } else {
        $dataLocality[$locality]['count'] += 1;
    }
}

Answer 2

在foreach循环之外声明一个数组（比如$dataLocality）。在每个循环中，您在$datalocality中搜索一个存在的位置（如果$result在$dataLocality中）。如果有，则将计数器递增$dataLocality[$indexOfFounding]['count']++。

如果您在$ dataLocality中找不到任何位置，则此课程需要添加“type”，“label”和“count”数组。

在foreach循环之后，您可以浏览阵列并输出或对结果执行任何操作。

Answer 3

如果您需要地点数组，请使用count尝试：

foreach ($results as $result) {
    $source = $result->getSource();
    $locality = $source['locality']['locality'];
    $dataLocality[] = array(
        'type'    => 'locality',
        'label'   => $locality,
        'count'   => count($source['locality']), //get locality array count
    );
}

Answer 4

感谢@ Dave的回复我解决了这个问题，但由于我没有命名密钥，我在循环外添加了：

$dataLocality = array_values($dataLocality);

所以解决问题的完整代码，但有时候有人遇到类似我的问题是：

foreach ($results as $result) {
    $source = $result->getSource();
    if(!isset($dataLocality[$locality = $source['locality']['locality']])) {
        $dataLocality[$locality] = array(
            'type'    => 'locality',
            'label'   => $locality,
            'count'   => 1,
        );
    } else {
        $dataLocality[$locality]['count']++;
    }
}
$dataLocality = array_values($dataLocality);

计算查询中的多个值

4 个答案: