在多维数组上使用 array_filter

Question

我正在尝试筛选如下所示的数组

$array = array(
    "id" => "SomeID",
    "name" => "SomeName",
    "Members" => array(
        "otherID" => "theValueIamLookingFor",
        "someOtherKey" => "something"
    )
);

现在，我正在过滤数据集，其中 "otherID" 是某个值。我知道我可以使用 array_filter 来过滤 "id"，但我一辈子都弄不明白如何在数组中过滤数组中的值。

添加一些由 WebAPI 提供的数据（我运行通过 json_decode 在所有这些过滤业务之前创建一个关联数组）

[
{
"id": "b679d716-7cfa-42c4-9394-3abcdged",
"name": "someName",
"actualCloseDate": "9999-12-31T00:00:00+01:00",
"members": [
  {
    "otherID": "31f27f9e-abcd-1234-aslkdhkj2j4",
    "name": "someCompany"
  }
],
"competitor": null,
},
{
"id": "c315471f-45678-4as45-457-asli74hjkl",
"name": "someName",
"actualCloseDate": "9999-12-31T00:00:00+01:00",
"members": [
  {
    "otherID": "askgfas-agskf-as",
    "name": "someName"
  }
],
"competitor": null,

}, ]

Answer 1

你可以这样做：

$arr = array(
    array(
        "id" => "SomeID",
        "name" => "SomeName",
        "Members" => array (
                "otherID" => "ThisIsNottheValueIamLookingFor",
                "someOtherKey" => "something"
            )
    ),
    array(
        "id" => "SomeID",
        "name" => "SomeName",
        "Members" => array (
                "otherID" => "theValueIamLookingFor",
                "someOtherKey" => "something"
            )
    ),
    array(
        "id" => "SomeID",
        "name" => "SomeName",
        "Members" => array (
                "otherID" => "ThisIsNottheValueIamLookingForEither",
                "someOtherKey" => "something"
            )
    ),
);

$result = array_filter($arr, function( $v ){
    return $v["Members"]["otherID"] == "theValueIamLookingFor";
});

这将导致：

Array
(
    [1] => Array
        (
            [id] => SomeID
            [name] => SomeName
            [Members] => Array
                (
                    [otherID] => theValueIamLookingFor
                    [someOtherKey] => something
                )

        )

)

这里是文档以获取更多信息：http://php.net/manual/en/function.array-filter.php

更新

你更新了数组，数组的结构不一样了。您必须使用 $v["members"][0]["otherID"] 才能获得 otherID

请尝试以下代码：

$result = array_filter($arr, function( $v ){
    return $v["members"][0]["otherID"] == "theValueIamLookingFor";
});

在多维数组上使用 array_filter

Use array_filter on multi dimensional array

php

arrays

array-filter

更新