This answers in an extension to what avs099 has given above, for those who are still having problems:
1.Makesure that you have php_openssl.dll installed(else find it online and install it);
2.Go to your php.ini; find extension=php_openssl.dll enable it/uncomment
3.Go to github and downland the latetest version :6.0 at this time.
4.Extract the master copy into the path that works better for you(I recommend the same directory as the calling file)
Now copy this code into your foo-mailer.php and render it with your gmail stmp authentications.
require("/PHPMailer-master/src/PHPMailer.php");
require("/PHPMailer-master/src/SMTP.php");
require("/PHPMailer-master/src/Exception.php");
$mail = new PHPMailer\PHPMailer\PHPMailer();
$mail->IsSMTP();
$mail->CharSet="UTF-8";
$mail->Host = "smtp.gmail.com";
$mail->SMTPDebug = 1;
$mail->Port = 465 ; //465 or 587
$mail->SMTPSecure = 'ssl';
$mail->SMTPAuth = true;
$mail->IsHTML(true);
//Authentication
$mail->Username = "foo@gmail.com";
$mail->Password = "*******";
//Set Params
$mail->SetFrom("foo@gmail.com");
$mail->AddAddress("bar@gmail.com");
$mail->Subject = "Test";
$mail->Body = "hello";
if(!$mail->Send()) {
echo "Mailer Error: " . $mail->ErrorInfo;
} else {
echo "Message has been sent";
}
Disclaimer:The original owner of the code above is avs099 with just my little input.
Take note of the additional:
a) (PHPMailer\PHPMailer) namespace:needed for name conflict resolution.
b) The (require("/PHPMailer-master/src/Exception.php");):It was missing in avs099's code thus the problem encountered by aProgger,you need that line to tell the mailer class where the Exception class is located.