我正在使用 Laravel 5.3
。
我有一个多维数组
,例如:
Array
(
[id] => 37141
[last_done_on] => []
[children] => Array
(
[0] => NULL /* This must be removed */
[1] => Array
(
[id] => 37142
[last_done_on] => Array()
[children] => Array()
)
[2] => Array
(
[id] => 37143
[last_done_on] => Array()
[children] => Array
(
[0] => Array
(
[id] => 37144
[last_done_on] => Array()
[children] => Array()
)
[1] => Array
(
[id] => 37145
[last_done_on] => Array()
[children] => Array()
)
)
)
[3] => Array
(
[id] => 37157
[last_done_on] => Array()
[children] => Array
(
[0] => Array
(
[id] => 37158
[last_done_on] => Array()
[children] => Array()
)
[1] => Array
(
[id] => 37159
[last_done_on] => Array()
[children] => Array
(
[0] => NULL /* This must be removed */
)
)
)
)
)
)
而且我想删除
NULL
的元素
。所以结果应该是这样的:
Array
(
[id] => 37141
[last_done_on] => []
[children] => Array
(
[0] => Array
(
[id] => 37142
[last_done_on] => Array()
[children] => Array()
)
[1] => Array
(
[id] => 37143
[last_done_on] => Array()
[children] => Array
(
[0] => Array
(
[id] => 37144
[last_done_on] => Array()
[children] => Array()
)
[1] => Array
(
[id] => 37145
[last_done_on] => Array()
[children] => Array()
)
)
)
[2] => Array
(
[id] => 37157
[last_done_on] => Array()
[children] => Array
(
[0] => Array
(
[id] => 37158
[last_done_on] => Array()
[children] => Array()
)
[1] => Array
(
[id] => 37159
[last_done_on] => Array()
[children] => Array
(
)
)
)
)
)
)
如何做到这一点?
最佳答案
在集合中,使用过滤器
some_collection->filter(function($value, $key) {
return $value != null;
});
关于php - Laravel - 从多维数组中删除具有 NULL 值的元素,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/42829169/