我在PHP中有一个混合索引/关联数组，理论上它可以无限深，因为有些元素可能有"子"数组。我附上一个精简的例子。php数组源自一些JSON数据。
我想搜索给定的键/值对，并删除索引级别上与该对匹配的任何元素。
例如，在下面的数组中，我希望搜索"formId"的键和值"44"，并删除元素，以便删除$array[0][0][0]和$array[0][1]。显然，我需要对数组重新编号。
我需要能够搜索任何键/值对。。。一次只需要一双。。。也就是说，"44"的"formId"的上述示例下次可能是"16"的"viewId"。
我已经尝试了很多方法来做到这一点，使用迭代器、递归foreach循环，&参考钥匙，但我似乎就是搞不清楚。
Array
(
[0] => Array
(
[formId] => 0
[subId] => 0
[viewId] => 0
[id] => 0
[children] => Array
(
[0] => Array
(
[formId] => 1
[subId] => 0
[viewId] => 16
[id] => _st_node_5328_0_0
[children] => Array
(
[0] => Array
(
[formId] => 1
[subId] => 0
[viewId] => 16
[id] => _st_node_3838_0_0_0
[children] => Array
(
[0] => Array
(
[formId] => 44
[subId] =>
[viewId] => 16
[id] => _st_node_947_0_0_0_0
)
[1] => Array
(
[formId] => 7
[subId] =>
[viewId] => 16
[id] => _st_node_947_0_0_0_1
)
[2] => Array
(
[formId] => 3
[subId] =>
[viewId] => 16
[id] => _st_node_947_0_0_0_2
)
[3] => Array
(
[formId] => 10
[subId] =>
[viewId] => 16
[id] => _st_node_947_0_0_0_3
)
[4] => Array
(
[formId] => 9
[subId] =>
[viewId] => 16
[id] => _st_node_947_0_0_0_4
)
[5] => Array
(
[formId] => 8
[subId] =>
[viewId] => 16
[id] => _st_node_947_0_0_0_5
)
[6] => Array
(
[formId] => 6
[subId] =>
[viewId] => 16
[id] => _st_node_947_0_0_0_6
)
[7] => Array
(
[formId] => 5
[subId] =>
[viewId] => 16
[id] => _st_node_947_0_0_0_7
)
[8] => Array
(
[relId] => 167
[formId] => 4
[text] => Laptop Computers
[subId] =>
[viewId] => 16
[id] => _st_node_947_0_0_0_8
[isActive] =>
)
[9] => Array
(
[formId] => 1
[subId] =>
[viewId] => 16
[id] => _st_node_947_0_0_0_9
)
)
)
[1] => Array
(
[formId] => 1
[subId] => 0
[viewId] => 1
[id] => _st_node_3838_0_0_1
)
[2] => Array
(
[formId] => 1
[subId] => 0
[viewId] => 11
[id] => _st_node_3838_0_0_2
)
[3] => Array
(
[formId] => 1
[subId] => 0
[viewId] => 12
[id] => _st_node_3838_0_0_3
)
[4] => Array
(
[formId] => 1
[subId] => 0
[viewId] => 13
[id] => _st_node_3838_0_0_4
)
[5] => Array
(
[formId] => 1
[subId] => 0
[viewId] => 14
[id] => _st_node_3838_0_0_5
)
[6] => Array
(
[formId] => 1
[subId] => 0
[viewId] => 110
[id] => _st_node_3838_0_0_6
)
)
)
[1] => Array
(
[formId] => 44
[subId] => 0
[viewId] => 144
[id] => _st_node_5328_0_1
)
[2] => Array
(
[formId] => 10
[subId] => 0
[viewId] => 26
[id] => _st_node_5328_0_2
)
[3] => Array
(
[formId] => 9
[subId] => 0
[viewId] => 9
[id] => _st_node_5328_0_3
)
[4] => Array
(
[formId] => 8
[subId] => 0
[viewId] => 8
[id] => _st_node_5328_0_4
)
[5] => Array
(
[formId] => 7
[subId] => 0
[viewId] => 25
[id] => _st_node_5328_0_5
)
[6] => Array
(
[formId] => 6
[subId] => 0
[viewId] => 6
[id] => _st_node_5328_0_6
)
[7] => Array
(
[formId] => 5
[subId] => 0
[viewId] => 5
[id] => _st_node_5328_0_7
)
[8] => Array
(
[formId] => 4
[subId] => 0
[viewId] => 4
[id] => _st_node_5328_0_8
)
[9] => Array
(
[formId] => 3
[subId] => 0
[viewId] => 3
[id] => _st_node_5328_0_9
)
)
)
)
想法
由于您希望取消设置元素，因此您肯定希望将$array作为引用（&$array）传递到函数中。
您希望使用递归来允许根据实际数组进行必要的深度挖掘。
循环遍历数组的所有元素，第一件事就是检查元素是否为数组。如果是，则检查该子数组是否符合您的条件。如果是，则移除它。如果不是，则调用该子数组上具有相同$key、$value对的函数。
代码
function removeMatching($key, $value, &$arr) {
// Iterate over all $arr elements
foreach ($arr as $i => $subarr) {
// Skip all elements that are not arrays
if (is_array($subarr)) {
// Check if the sub-array matches the criteria
if (isset($subarr[$key]) && $subarr[$key] === $value) {
// Remove it from the main array if it does
unset($arr[$i]);
} else {
// If the sub-array didn't match the criteria
// Check if it contains any other matching sub-arrays
removeMatching($key, $value, $arr[$i]);
}
}
}
}
像这样应用：
$array = []; // your array
removeMatching('formId', 44, $array);
var_dump($array);