How to delete the key of a one-dimensional array without using two foreach loops.

1. I want to turn a two-dimensional array into one dimension and delete the arr value of one-dimensional KEY. Is there a function?
2. Array code:

<code> stdClass Object
(
    [arr] => stdClass Object
        (
            [0] => stdClass Object
                (
                    [id] => 14
                    [cid] => 221
                    [title] => 深圳市轨道交通网络运营控制中心室内精装、玻璃幕墙工程
                    [source] => 
                    [count] => 0
                    [img] => http://upload.55.cn/source/44/201606/50457731d4be5e5c1.jpg
                    [info] => 
                    [fee] => 0
                    [url] => /product/detail/14.html
                    [cate_name] => 装修工程
                )

            [1] => stdClass Object
                (
                    [id] => 12
                    [cid] => 220
                    [title] => 南充嘉陵江1000T级泊位都京码头
                    [source] => 
                    [count] => 0
                    [img] => http://upload.55.cn/source/44/201606/55557731d15a3aa42.jpg
                    [info] => 
                    [fee] => 0
                    [url] => /product/detail/12.html
                    [cate_name] => 水利电力工程
                )
</code>

How to delete arr? Otherwise, it would be inelegant to use two foreach loops. .

Reply content:

1. I want to turn a two-dimensional array into one dimension and delete the arr value of one-dimensional KEY. Is there a function?
2. Array code:

<code> stdClass Object
(
    [arr] => stdClass Object
        (
            [0] => stdClass Object
                (
                    [id] => 14
                    [cid] => 221
                    [title] => 深圳市轨道交通网络运营控制中心室内精装、玻璃幕墙工程
                    [source] => 
                    [count] => 0
                    [img] => http://upload.55.cn/source/44/201606/50457731d4be5e5c1.jpg
                    [info] => 
                    [fee] => 0
                    [url] => /product/detail/14.html
                    [cate_name] => 装修工程
                )

            [1] => stdClass Object
                (
                    [id] => 12
                    [cid] => 220
                    [title] => 南充嘉陵江1000T级泊位都京码头
                    [source] => 
                    [count] => 0
                    [img] => http://upload.55.cn/source/44/201606/55557731d15a3aa42.jpg
                    [info] => 
                    [fee] => 0
                    [url] => /product/detail/12.html
                    [cate_name] => 水利电力工程
                )
</code>

How to delete arr? Otherwise, it would be inelegant to use two foreach loops. .

$resultArr = $targetArr['arr'];

Did I understand it wrong?

is the object that should be $result->arr

Convert object to array
$a = $result['arr'];