Untitled

How can I use $mail->SMTPDebug as a string?
$mail->SMTPDebug  = 1;

function mailsender($val,$yollayan,$sifresi,$name,$subject,$message) {

$mail = new PHPMailer();
$mail->IsSMTP();
$mail->SMTPDebug  = 1;
$mail->SMTPAuth = true;
$mail->SMTPSecure = "tls";

$mail->Username   = $yollayan;
$mail->Password   = $sifresi;

$mail->Host = "smtp.live.com";
$mail->Port = "587";


$mail->From = $yollayan;
$mail->Fromname = $name;
$mail->name = $name;


$mail->Subject = $subject;
$mail->Body = $message;
$mail->AddAddress($val);
$mail->send();

}

class MyPHPMailer extends PHPMailer {

  public $DbgOut = '';

  private function edebug($str) {
    $this->DbgOut .= $str;
  }

}

function mailsender($val, $yollayan, $sifresi, $name, $subject, $message) {

  $mail = new MyPHPMailer();
  $mail->IsSMTP();
  $mail->SMTPDebug  = 1;
  $mail->SMTPAuth = true;
  $mail->SMTPSecure = "tls";

  $mail->Username   = $yollayan;
  $mail->Password   = $sifresi;

  $mail->Host = "smtp.live.com";
  $mail->Port = "587";


  $mail->From = $yollayan;
  $mail->Fromname = $name;
  $mail->name = $name;


  $mail->Subject = $subject;
  $mail->Body = $message;
  $mail->AddAddress($val);
  $mail->send();

  if(strlen($mail->DbgOut) > 10)
    echo 'Failed'.PHP_EOL;

}