Auth_OpenID_FileStore::clean PHP Méthode

    function clean()
    {
        if (!$this->active) {
            trigger_error("FileStore no longer active", E_USER_ERROR);
            return null;
        }
        $nonces = Auth_OpenID_FileStore::_listdir($this->nonce_dir);
        $now = time();
        // Check all nonces for expiry
        foreach ($nonces as $nonce) {
            if (!Auth_OpenID_checkTimestamp($nonce, $now)) {
                $filename = $this->nonce_dir . DIRECTORY_SEPARATOR . $nonce;
                Auth_OpenID_FileStore::_removeIfPresent($filename);
            }
        }
        foreach ($this->_allAssocs() as $pair) {
            list($assoc_filename, $assoc) = $pair;
            if ($assoc->getExpiresIn() == 0) {
                Auth_OpenID_FileStore::_removeIfPresent($assoc_filename);
            }
        }
    }