SimpleEmailServiceMessage::addCC PHP Method

    public function addCC($cc)
    {
        if (!is_array($cc)) {
            $this->cc[] = $cc;
        } else {
            $this->cc = array_merge($this->cc, $cc);
        }
        return $this;
    }

 public function sendmail()
 {
     $this->load->library('form_validation');
     $this->load->model('EmailModel');
     $this->load->model('UserModel');
     $name = $this->input->post('name');
     $email = $this->input->post('email');
     $subject = $this->input->post('subject');
     $msg = $this->input->post('msg');
     $adminUsers = $this->UserModel->getAdminUsers();
     foreach ($adminUsers as $userAdmin) {
         $receiverAdminId[] = $userAdmin->id;
         $receiverAdminEmail[] = $userAdmin->email;
     }
     $emailId = $this->EmailModel->insertEmails('Success', $receiverAdminId);
     $link = '<a href="' . base_url(ADMIN_PATH . "mail/read_mail/" . $emailId) . '" target="_blank">here</a>';
     $emailMessage = "You've received email from " . $name . ". Click " . $link . " to view the message.";
     $this->load->library('SimpleEmailService');
     $ses = new SimpleEmailService('AKIAISEC5PBG2F54VL4A', 'ZhRYSpKdUMLRrxPwy878UN+pJmnllAocdcYRpJwZ');
     $ses->enableVerifyPeer(false);
     //print_r($ses->verifyEmailAddress('*****@*****.**'));
     $m = new SimpleEmailServiceMessage();
     $m->addTo(EMAILSENDER);
     $m->addCC($receiverAdminEmail);
     $m->setFrom($email . '<' . EMAILSENDER . '>');
     $m->setSubject($subject);
     $message = $emailMessage;
     $m->setMessageFromString('', $message);
     if ($ses->sendEmail($m)) {
         if ($this->uri->segment(1) == 'Contact' || $this->uri->segment(1) == 'contact') {
             $this->session->set_flashdata("su_message", "Email Sent Successfully");
             redirect("contact");
         } else {
             echo "<script>alert('Email Sent Successfully');window.history.back();</script>";
         }
     }
 }