SMTP错误：无法连接到服务器

Question

我试图使用php邮件程序与symfony 2

public function sendMailAction($email){
    $user = $this->getUser();
    $UserMail =  $user->getEmail();
    $mail = new PHPMailer(true);

    $mail->isSMTP();
    $mail->SMTPDebug = 2;
    $mail->Host = 'smtp.gmail.com'; 
    $mail->Port = 465;
    $mail->SMTPSecure = 'ssl';
    $mail->SMTPAuth = true;           
    $mail->Username = 'myGmail@gmail.com';
    $mail->Password = '********';                           

    $mail->setFrom('myGmail@gmail.com', 'Mailer');
    $mail->addAddress($email, 'A Name');
    $mail->isHtml(true);
    $mail->Subject = 'PHPmailer test';
    $mail->Body    = 'This is the HTML message body <b>in bold!</b>';
    $mail->AltBody = 'This is the body in plain text for non-HTML mail clients';

    $mail->send();

    if(!$mail->send()){
        return new JsonResponse($mail->ErrorInfo);
    } else {
        return new JsonResponse("mail envoyé");
    }
}

我遵循所有github教程，尝试更改端口（ssl为465，tsl为587），并在stackoverflow中花费大量时间来创建一个awnser，但在最后我总是有同样的错误＆＃34 ; SMTP错误：无法连接到服务器＆＃34;。 THX