PHP按特定键过滤二维数组 [英] PHP filter 2 dimensional array by specific key
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问题描述
我有这个数组:
Array
(
[702a4584] => Array
(
[type] => folder
[id] => 702a4584
)
[b547b3a9] => Array
(
[type] => folder
[id] => b547b3a9
)
[fcb0d055] => Array
(
[type] => page
[id] => fcb0d055
)
)
我要过滤数组,以便仅保留类型"folder":
I want to filter the array such that only type "folder" will remain:
Array
(
[702a4584] => Array
(
[type] => folder
[id] => 702a4584
)
[b547b3a9] => Array
(
[type] => folder
[id] => b547b3a9
)
)
我可以这样做,但是我需要一个通用函数:
I could do this, but I'll be needing a generic function:
$temp = array();
foreach($array as $key => $value)
{
if($value['type'] =="folder")
{
$temp[$key] = $value;
}
}
推荐答案
您可以使用 array_filter
:
You could use array_filter
:
$filtered = array_filter($array, function($v) { return $v['type'] == 'folder'; });
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