Flattening a JSON multi depty array in PHP

Question

Good morning, given the below data structure (in JSON for ease of reading)

[
{
    \"parent\": \"root\",
    \"active\": \"1\",
    \"label\": \"Index\",
            


        

Answer 1

Not very hard:

function flatten(array $array) {
    $branch = [];

    foreach ($array as $item) {
        $children = [];
        if (isset($item['children']) && is_array($item['children'])) {
            $children = flatten($item['children']);
            unset($item['children']);
        }
        $branch = array_merge($branch, [$item], $children);
    }

    return $branch;
}