Parent Child Tree PHP Recursion

recursive function

public function getresultTree(array $elements, $parentId = 0) {
        
        $branch = array();
        
        foreach ($elements as $element) {
            if ($element['parent_id'] == $parentId) {            
                
                $children = getresultTree($elements, $element['id']);
                if ($children) {
                   
                    $element['child'] = $children;
                   
                }
                $branch[] = $element;
            }
        }

        return $branch;
    }

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