Question

我有一个数组$rows，如下所示：

Array
(
    [0] => Array
        (
            [type] => post
            [object_id] => 1
            [language_id] => 1
            [score] => 2
        )

    [1] => Array
        (
            [type] => category
            [object_id] => 46
            [language_id] => 1
            [score] => 1
        )

    [2] => Array
        (
            [type] => product
            [object_id] => 50
            [language_id] => 1
            [score] => 1
        )

    [3] => Array
        (
            [type] => category
            [object_id] => 59
            [language_id] => 1
            [score] => 1
        )
    [4] => Array
        (
            [type] => post
            [object_id] => 1
            [language_id] => 1
            [score] => 1
        )
)

我需要遍历此数组，当重复的type和object_id匹配时，增加分数并删除重复的数组。我似乎找不到办法来做到这一点。

使用上面的示例，密钥0包含type post和object_id 1，密钥4也是如此。密钥0 score应增加到本身+键4 score和键4应该被删除。

我的最终结果应如下所示：

Array
(
    [0] => Array
        (
            [type] => post
            [object_id] => 1
            [language_id] => 1
            [score] => 3
        )

    [1] => Array
        (
            [type] => category
            [object_id] => 46
            [language_id] => 1
            [score] => 1
        )

    [2] => Array
        (
            [type] => product
            [object_id] => 50
            [language_id] => 1
            [score] => 1
        )

    [3] => Array
        (
            [type] => category
            [object_id] => 59
            [language_id] => 1
            [score] => 1
        )
)

Answer 1

您可以使用foreach作为

来实现这一目标

$result = [];

foreach ($arr as $key => $value) {
    $hash = $value['type'];
    $hash1 = $value['object_id'];
    if (isset($result[$hash.$hash1]['type']) && isset($result[$hash.$hash1]['object_id'])) {
        $result[$hash.$hash1]['type'] = $value['type'];
        $result[$hash.$hash1]['object_id'] = $value['object_id'];
        $result[$hash.$hash1]['language_id'] = $value['language_id'];
        $result[$hash.$hash1]['score'] += $value['score'];
    } else {
        $result[$hash.$hash1]['type'] = $value['type'];
        $result[$hash.$hash1]['object_id'] = $value['object_id'];
        $result[$hash.$hash1]['language_id'] = $value['language_id'];
        $result[$hash.$hash1]['score'] = $value['score'];
    }
}

print_r(array_values($result));

Demo

循环遍历数组并删除重复的PHP

1 个答案: