php使用glob://遍历文件夹

/**使用glob://遍历文件夹
 * 递归遍历文件夹
 * @param $path
 * @param string $kongge
 */
function showFile($path, $kongge = '')
{
    $it = new DirectoryIterator($path);
    foreach ($it as $f) {
        /**
         * @var SplFileInfo $f
         */
        if ($f->isDir() === true) {
            echo    $kongge . $f->getFilename() . "\n";
            showFile("glob://" . $f->getRealPath() . "/*", $kongge . '   ');
        } else {
            echo    $kongge . $f->getFilename() . "\n";
        }
    }
}