Piwik\Columns\Updater::getCurrentDimensionFileChanges PHP Method

    private static function getCurrentDimensionFileChanges()
    {
        $files = Filesystem::globr(PIWIK_INCLUDE_PATH . '/plugins/*/Columns', '*.php');
        $times = array();
        foreach ($files as $file) {
            $times[$file] = filemtime($file);
        }
        return $times;
    }