Remove empty subfolders with PHP

Question

I am working on a PHP function that will recursively remove all sub-folders that contain no files starting from a given absolute path.

Here is the code developed so

Answer 1

Solution for Linux, using command line tool but faster and simpler than with pure PHP

/**
 * Remove all empty subdirectories
 * @param string $dirPath path to base directory
 * @param bool $deleteBaseDir - Delete also basedir if it is empty
 */
public static function removeEmptyDirs($dirPath, $deleteBaseDir = false) {

    if (stristr($dirPath, "'")) {
        trigger_error('Disallowed character `Single quote` (\') in provided `$dirPath` parameter', E_USER_ERROR);
    }

    if (substr($dirPath, -1) != '/') {
        $dirPath .= '/';
    }

    $modif = $deleteBaseDir ? '' : '*';
    exec("find '".$dirPath."'".$modif." -empty -type d -delete", $out);
}

If you need Windows support, use PHP_OS constant and this one-liner

for /f "delims=" %d in ('dir /s /b /ad ^| sort /r') do rd "%d"`enter code here