ping“smtp.gmail.com”可以通，为什么PHPMAILer却报错

ping“smtp.gmail.com”可以通，为啥PHPMAILer却报错
在CMD里ping一下GMAIL的SMTP服务器可以通，

可是在网页里面做的发送email的程序，却总是报错：
SMTP Error: Could not connect to SMTP host. Mailer Error: SMTP Error: Could not connect to SMTP host.


咋回事呢：

PHP code

<!--

Code highlighting produced by Actipro CodeHighlighter (freeware)
http://www.CodeHighlighter.com/

-->
<?php include("phpmailer/class.phpmailer.php");
$mail             = new PHPMailer();
$body             = "TEST_TEST";

$mail->IsSMTP();
$mail->SMTPAuth   = true;                  // enable SMTP authentication
$mail->SMTPSecure = "ssl";                 // sets the prefix to the servier
$mail->Host       = "smtp.gmail.com";      // sets GMAIL as the SMTP server
$mail->Port       = 465;                   // set the SMTP port for the GMAIL server

$mail->Username   = "xxx@gmail.com";  // GMAIL username
$mail->Password   = "xxx";            // GMAIL password


$mail->From       = "xxx@gmail.com";
$mail->FromName   = "xxx";

$mail->Subject    = "subject 111";

//$mail->Body       = "Hi,<br>This is the HTML BODY<br>";                      //HTML Body
$mail->AltBody    = "To view the message, please use an HTML compatible email viewer!"; // optional, comment out and test
$mail->WordWrap   = 50; // set word wrap

$mail->MsgHTML($body);

$mail->AddAddress("xxx@gmail.com", "xxx");

$mail->IsHTML(true); // send as HTML

if(!$mail->Send()) {
    echo "Mailer Error: " . $mail->ErrorInfo;
} else {
    echo "Message sent!";
}

?>

------解决方案--------------------

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