Method resolve

/**
 * Resolves /./, /../ and multiple / in a string and returns the resulting absolute path, inspired by Flysystem
 * Removes trailing slashes
 *
 * @param   string  $path  A path to resolve
 *
 * @return  string  The resolved path
 *
 * @since   3.9.25
 */
public static function resolve($path)
{
    $path = static::clean($path);
    // Save start character for absolute path
    $startCharacter = $path[0] === DIRECTORY_SEPARATOR ? DIRECTORY_SEPARATOR : '';
    $parts = [];
    foreach (explode(DIRECTORY_SEPARATOR, $path) as $part) {
        switch ($part) {
            case '':
            case '.':
                break;
            case '..':
                if (empty($parts)) {
                    throw new \Exception('Path is outside of the defined root');
                }
                array_pop($parts);
                break;
            default:
                $parts[] = $part;
                break;
        }
    }
    return $startCharacter . implode(DIRECTORY_SEPARATOR, $parts);
}