使用GMail SMTP服务器从PHP页面发送电子邮件

// Pear Mail Library
require_once “Mail.php”;

$from = '<fromaddress@gmail.com>';$to = '<toaddress@yahoo.com>';$subject = 'Hi!';$body = "Hi,nnHow are you?";$headers = array(    'From' => $from,    'To' => $to,    'Subject' => $subject);$smtp = Mail::factory('smtp', array(        'host' => 'ssl://smtp.gmail.com',        'port' => '465',        'auth' => true,        'username' => 'johndoe@gmail.com',        'password' => 'passwordxxx'    ));$mail = $smtp->send($to, $headers, $body);if (PEAR::isError($mail)) {    echo('<p>' . $mail->getMessage() . '</p>');} else {    echo('<p>Message successfully sent!</p>');}