Method getPermissions

/**
 * Get the permissions of the file/folder at a given path.
 *
 * @param   string  $path  The path of a file/folder.
 *
 * @return  string  Filesystem permissions.
 *
 * @since   1.7.0
 */
public static function getPermissions($path)
{
    $path = self::clean($path);
    $mode = @decoct(@fileperms($path) & 0777);
    if (\strlen($mode) < 3) {
        return '---------';
    }
    $parsed_mode = '';
    for ($i = 0; $i < 3; $i++) {
        // Read
        $parsed_mode .= $mode[$i] & 04 ? 'r' : '-';
        // Write
        $parsed_mode .= $mode[$i] & 02 ? 'w' : '-';
        // Execute
        $parsed_mode .= $mode[$i] & 01 ? 'x' : '-';
    }
    return $parsed_mode;
}