Convert Multidimensional array to single array in codeigniter php

Question

I have a multidimensional array as shown below

Array
(
    [0] => Array
        (
            [0] => stdClass Object
                (
                    [id] => 237
                )
            [1] => stdClass Object
                (
                 [id] => 228
                )
        )
    [1] => Array
        (
            [0] => stdClass Object
                (
                    [id] => 247
                )
            [1] => stdClass Object
                (
                 [id] => 238
                )
        )
)

I want to convert into single array as shown below

Array
(
        [0] => stdClass Object
        (
            [id] => 237
        )
        [1] => stdClass Object
        (
            [id] => 228
        )
        [2] => stdClass Object
        (
            [id] => 247
        )
        [3] => stdClass Object
        (
            [id] => 238
        )
)

I have tried with the following solution Convert multidimensional array into single array

But the result am not getting Its Coming Null

How to get the desired result for the above input.

Any help appreciated.

Answer 1

Try foreach loop then array_merge()

$result = [];

foreach ($array as $value) {
    $result = array_merge($result, $value);
}

var_dump($result);

Answer 2

Hope this one works

function array_flattern($arr) {
    $returnArr=[];
    foreach($arr as $k=>$v) {
        $returnArr = array_merge($returnArr, $v);
    }
    return $returnArr;
}