ping“smtp.gmail.com”可以通，為什麼PHPMAILer卻報錯

ping“smtp.gmail.com”可以通，為啥PHPMAILer卻報錯
在CMD裡ping一下GMAIL的SMTP伺服器可以通，

可是在網頁裡面做的發送email的程式，卻總是報錯：
SMTP Error: Could not connect to SMTP host. Mailer Error: SMTP Error: Could not connect to SMTP host.


咋回事呢：

PHP code

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,
This is the HTML BODY
";                      //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!"; }      ?>

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探討

會不會是空間商做了限制呢？

我在本地測試，用163的郵箱可以發郵件；用GMAIL的也是顯示這個錯誤，開啟PHPMAILER的偵錯模式顯示：
SMTP -> ERROR: Failed to connect to server: Unable to find the socket transport "ssl" - did you forget to enable it when you ……

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