我在PHP中有一个混合索引/关联数组，理论上可以无限深，因为某些元素可能有“孩子”。阵列。我附上一个瘦身的例子。 php数组派生自一些JSON数据。
我想搜索给定的键/值对，并删除在索引级别匹配该对的任何元素。
例如，在下面的数组中，我希望搜索＆＃39; formId＆＃39;的关键字。以及＆＃39; 44＆＃39;并删除元素，以便删除$ array [0] [0] [0] [0]和$ array [0] [1]。显然，我需要重新编号数组。
我需要能够搜索任何键/值对...一次只需要一对...也就是说，上面的例子是＆＃39; formId＆＃39; ＆＃39; 44＆＃39;可能是＆＃39; viewId＆＃39; ＆＃39; 16＆＃39;下次。
我尝试了很多方法，使用迭代器，递归foreach循环和＆amp; $引用键，但我似乎无法正确使用它。
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
)
)
)
)
答案 0 :(得分：1)
由于您要取消设置元素，您肯定希望将$array作为参考（&$array）传递给函数。
您希望使用递归来根据实际数组深入挖掘。
循环遍历数组的所有元素，您要做的第一件事就是检查元素是否是数组。如果是，则检查该子阵列是否符合您的条件。如果是，则将其删除。如果不是，则在该子阵列上调用具有相同$key，$value对的函数。
function removeMatching($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]);
}
}
}
}
像这样申请：
$array = []; // your array
removeMatching('formId', 44, $array);
var_dump($array);