zajdan - 2015-11-11

I render simply inner HTML via phpwkhtmltopdf, but I have a problem with QR code.

<?php
    ini_set("memory_limit", "128M");
    ini_set('display_errors', '1');
    error_reporting(E_ALL);

    require __DIR__ . '/wkhtmltopdf/autoload.php';
    require_once ('phpqrcode-master/qrlib.php');
    use mikehaertl\wkhtmlto\Pdf;

$svg_QR_Code = QRcode::svg('PHP QR Code :)');

    $pdf = new Pdf;
    $pdf->addPage('

    <html>
    <head>
    </head>
     <body>
     <div id="qr-picture">' .$svg_QR_Code. '  </div>
    </body>
    </html>
');

1) problem is, that the QRcode image is rendered even if I not use the variable

2) and unfortunately is rendered the QR image only without my html

Thank You