PHPMailer says the class doesn't exists, but it does

Question

I am about to explode! I have followed this step, step by step (as the picture below shows) and it still doesn't work for me!

require_once 'configurations/phpmailer/PHPMailerAutoload.php';
$mail = new PHPMailer;

//$mail->SMTPDebug = 3;                               // Enable verbose debug output

$mail->isSMTP();                                      // Set mailer to use SMTP
$mail->Host = 'smtp1.example.com;smtp2.example.com';  // Specify main and backup SMTP servers
$mail->SMTPAuth = true;                               // Enable SMTP authentication
$mail->Username = 'user@example.com';                 // SMTP username
$mail->Password = 'secret';                           // SMTP password
$mail->SMTPSecure = 'tls';                            // Enable TLS encryption, `ssl` also accepted
$mail->Port = 587;                                    // TCP port to connect to

$mail->setFrom('from@example.com', 'Mailer');
$mail->addAddress('joe@example.net', 'Joe User');     // Add a recipient
$mail->addAddress('ellen@example.com');               // Name is optional
$mail->addReplyTo('info@example.com', 'Information');
$mail->addCC('cc@example.com');
$mail->addBCC('bcc@example.com');

$mail->addAttachment('/var/tmp/file.tar.gz');         // Add attachments
$mail->addAttachment('/tmp/image.jpg', 'new.jpg');    // Optional name
$mail->isHTML(true);                                  // Set email format to HTML

$mail->Subject = 'Here is the subject';
$mail->Body    = 'This is the HTML message body <b>in bold!</b>';
$mail->AltBody = 'This is the body in plain text for non-HTML mail clients';

if(!$mail->send()) {
    echo 'Message could not be sent.';
    echo 'Mailer Error: ' . $mail->ErrorInfo;
} else {
    echo 'Message has been sent';
}

Please note that I have copied and pasted the code from GitHub and not changed the username nor the password! If the code above works, I wouldn't get the fatal error of Uncaught Error: Class 'PHPMailer' not found in ....

I have done this exactly as it is in the picture and in the code above (with some minor changes, of course) on my other projects and I have no problems at all with this on those projects!

What have I missed? What is wrong?

Answer 1

This is the autoloader function:

function PHPMailerAutoload($classname)
{
    //Can't use __DIR__ as it's only in PHP 5.3+
    $filename = dirname(__FILE__).DIRECTORY_SEPARATOR.'class.'.strtolower($classname).'.php';
    if (is_readable($filename)) {
        require $filename;
    }
}

Stick a couple of echoes or breakpoints in there so you can check a) that it's being run and b) that it's trying to load the class. The only way that this function will not attempt to load the class (and thus cause a "class not found" error when you try to use it) is if the class is not both present and readable, so check your ownership and permissions.

Answer 2

Provide absolute path for PHPMailerAutoload *(require_once)