SMTP connect() failed PHPmailer – PHP

I am new to PHP. I was trying to send myself a sample e-mail through PHPmailer. I am using gmail’s smtp server. I am trying to send a sample mail from my gmail account to my yahoo account. But I am getting the error : Mailer Error: SMTP connect() failed.
Here is the code :

<?php

require "class.phpmailer.php";
$mail = new PHPMailer(); 
$mail->IsSMTP();                              // send via SMTP
$mail->Host = "ssl://smtp.gmail.com";
$mail->SMTPAuth = true;                       // turn on SMTP authentication
$mail->Username = "[e-mail]";        // SMTP username
$mail->Password = "mypassword";               // SMTP password
$webmaster_email = "[e-mail]";       //Reply to this email ID
$email="[e-mail]";                // Recipients email ID
$name="My Name";                              // Recipient's name
$mail->From = $webmaster_email;
$mail->Port = 465;
$mail->FromName = "My Name";
$mail->AddAddress($email,$name);
$mail->AddReplyTo($webmaster_email,"My Name");
$mail->WordWrap = 50;                         // set word wrap
$mail->IsHTML(true);                          // send as HTML
$mail->Subject = "subject";
$mail->Body = "Hi,
This is the HTML BODY ";                      //HTML Body 
$mail->AltBody = "This is the body when user views in plain text format"; //Text Body 

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

I am using WAMP server on a Windows 7 64-bit machine. What could be the prob?
Please help me solve this. Thanks!

Answer

You need to add the Host parameter

$mail->Host = "ssl://smtp.gmail.com"; 

Also, check if you have open_ssl enabled.

<?php
echo !extension_loaded('openssl')?"Not Available":"Available";