如何使用 PHPMailer (CodeIgniter 3) 将二维码发送到 Gmail

Question

我有一些脚本 Codeigniter，用户想在其中注册，并将 qrcode 发送到用户的 gmail。但是，如何发送呢？变量是$mailContent这是我的代码        $name = $this->input->post('name');        $email = $this->input->post('email');        $no_hp = $this->input->post('no_hp');        $gen = $this->input->post('gen');        $method = $this->input->post('method');        $this->load->library('ciqrcode');        $config['cacheable']    = true; //boolean, the default is true        $config['cachedir']     = './assets/'; //string, the default is application/cache/        $config['errorlog']     = './assets/'; //string, the default is application/logs/        $config['imagedir']     = './assets/images/';         $config['quality']      = true; //boolean, the default is true        $config['size']         = '1024'; //interger, the default is 1024        $config['black']        = array(224,255,255); // array, default is array(255,255,255)        $config['white']        = array(70,130,180); // array, default is array(0,0,0)        $this->ciqrcode->initialize($config);        $image_name=$name.'.png';         $params['data'] = $name;         $params['level'] = 'H'; //H=High        $params['size'] = 10;        $params['savename'] = FCPATH.$config['imagedir'].$image_name;         $this->ciqrcode->generate($params);         //PHP Mailer        // Load PHPMailer library        $this->load->library('phpmailer_lib');        // PHPMailer object        $mail = $this->phpmailer_lib->load();        // SMTP configuration        $mail->isSMTP();        $mail->Host     = 'smtp.gmail.com';        $mail->SMTPAuth = true;        $mail->Username = '[e-mail]';        $mail->Password = '******';        $mail->SMTPSecure = 'tls';        $mail->Port     = 587;        $mail->setFrom('[e-mail]', 'RyanK');        $mail->addReplyTo('[e-mail]', 'RyanK');