有没有办法按其位置而不是其键值取消设置数组中的元素

Question

我有一个数组$old_que_ans_session，它是

Array
(
    [1] => Array
        (
            [home] => https://s3.ap-south-1.amazonaws.com/bmimagedump/uploads/interior/design/1533365337.jpg
        )
    [3] => Array
        (
            [home] => https://s3.ap-south-1.amazonaws.com/bmimagedump/uploads/interior/design/1531557283.jpg
        )
    [4] => Array
        (
            [home] => https://s3.ap-south-1.amazonaws.com/bmimagedump/uploads/interior/design/1531557681.jpg
        )
)

我需要根据数组中的元素值取消设置该元素。为此，我正在执行以下操作以获取密钥

$key1=array_search($da1, array_column($old_que_ans_session,$da));
unset($old_que_ans_session[$key1]);
where $da = home and $old_que_ans_session is the above mentioned array. The $key1 that I am getting is 2 but there is no key value as 2 in the above mentioned array.

如何解决这个问题。

Answer 1

使用 array_keys() 获取键的列表和您的$key1值以挑选出相关的键...

$actualKey = array_keys($old_que_ans_session)[$key1];

在unset()数组中的元素之前，您必须执行此操作，否则键将消失。