Recursively loop through multidimensional to create flat array

Question

I have a multidimensional array that looks like this:

$trees = array(
    array(
        \'name\' => \'Parent\',
        \'__children\' => array(
                  


        

Answer 1

I ended up using something like this, with a lot of inspiration from @Pankrates answer. Thanks a lot.

$trees = $multidimensionalArray;
$flat = array();
$postRepository->flattenRecursive($flat, $trees);
//$flat is now a flattened version of $multidimensionalArray
var_dump($flat);


public function flattenRecursive(array &$flat, array $nested, $parentPrepend = false)
{
    foreach( $nested as $item ){
        $flat[] = array(
            'name' => ($parentPrepend) ? $parentPrepend . '/' . $item['name'] : $item['name']
        );
        $prepend = $parentPrepend ? $parentPrepend . '/' . $item['name'] : $item['name'];
        if(isset($item['__children']))
            $this->flattenRecursive($flat, $item['__children'], $prepend);
    }
}