Zend FR

//.....
public function _connect() {
    $this->_mail = new Zend_Mail_Storage_Imap(array('host'        => 'imap.gmail.com',
                                                    'user'        => 'login@gmail.com',
                                                    'password'    => 'mdp',
                                                    'port'        => 993,
                                                    'ssl'        => 'SSL'));
}
//.......
public function getMessage($uid = false) {
    if($uid) {
        return $this->_mail->getMessage($uid);
    }else{
        return $this->_mail;
    }
}