XOOPS / XoopsCore25

                $packages = json_decode(file_get_contents($installed), true);

                foreach ($packages as $package) {

                    if (isset($package['extra'][$key]) && is_array($package['extra'][$key])) {

                        $extras = array_replace($extras, $package['extra'][$key]);

                    }

                }

                $folder = dirname($folder);

                if (file_exists($folder.'/composer.json') && is_readable($folder.'/composer.json')) {

                    $composer = json_decode(file_get_contents($folder.'/composer.json'), true);

                    if (isset($composer['extra'][$key]) && is_array($composer['extra'][$key])) {

                        $extras = array_replace($extras, $composer['extra'][$key]);

                    }

                }

                break;