多维阵列上使用array_intersect [英] Using array_intersect on a multi-dimensional array

问题描述

我有两个数组，这两个看起来像这样：

I have two arrays that both look like this:

Array
(
    [0] => Array
        (
            [name] => STRING
            [value] => STRING
        )

    [1] => Array
        (
            [name] => STRING
            [value] => STRING
        )

    [2] => Array
        (
            [name] => STRING
            [value] => STRING
        )
)

和我想能够由两个主阵列内的比较子阵列的ID复制array_intersect。到目前为止，我还没有在我的尝试是成功的。 （

and I would like to be able to replicate array_intersect by comparing the ID of the sub arrays within the two master arrays. So far, I haven't been successful in my attempts. :(

推荐答案

使用 和array_uintersect（） 中使用自定义比较函数，就像这样：

Use array_uintersect() to use a custom comparison function, like this:

$arr1 = array(
           array('name' => 'asdfjkl;', 'value' => 'foo'),
           array('name' => 'qwerty', 'value' => 'bar'),
           array('name' => 'uiop', 'value' => 'baz'),
        );

$arr2 = array(
           array('name' => 'zxcv', 'value' => 'stuff'),
           array('name' => 'asdfjkl;', 'value' => 'foo'),
           array('name' => '12345', 'value' => 'junk'),
           array('name' => 'uiop', 'value' => 'baz'),
        );

$intersect = array_uintersect($arr1, $arr2, 'compareDeepValue');
print_r($intersect);

function compareDeepValue($val1, $val2)
{
   return strcmp($val1['value'], $val2['value']);
}

这将产生，正如你所期望：

which yields, as you would hope:

Array
(
    [0] => Array
        (
            [name] => asdfjkl;
            [value] => foo
        )

    [2] => Array
        (
            [name] => uiop
            [value] => baz
        )

)

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