有没有办法通过位置而不是键值来取消设置数组中的元素

Question

我有一个数组 $old_que_ans_session 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
        )

)

我需要根据其值取消设置数组中的元素。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() 获取键列表和您的$key1 值以选择相关键...

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

您必须在 unset() 数组中的元素之前执行此操作，否则密钥将消失。