尝试使用swift邮件程序，gmail smtp，php发送邮件

Here is my code:

这是我的代码：

<?php
require_once 'Swift/lib/swift_required.php';

$transport = Swift_SmtpTransport::newInstance('smtp.gmail.com', 465)
  ->setUsername('[email protected]')
  ->setPassword('pass');

$mailer = Swift_Mailer::newInstance($transport);
$message = Swift_Message::newInstance('Wonderful Subject')
  ->setFrom(array('[email protected]' => 'MY NAME'))
  ->setTo(array('[email protected]' => 'YOU'))
  ->setBody('This is the text of the mail send by Swift using SMTP transport.');
//$attachment = Swift_Attachment::newInstance(file_get_contents('path/logo.png'), 'logo.png');  
//$message->attach($attachment);
$numSent = $mailer->send($message);
printf("Sent %d messages\n", $numSent);
?>
<?php
require_once