could not generate 2+ pdf per time

Prerequisites

[x] I have searched for similar issues in both open and closed tickets and cannot find a duplicate.
[ ] The issue still exists against the latest master branch of yii2-mpdf.
[x] This is not an usage question. I confirm having gone through and read the documentation.
[x] This is not a general programming / coding question. (Those should be directed to the webtips Q & A forum).
[x] I have attempted to find the simplest possible steps to reproduce the issue.
[ ] I have included a failing test as a pull request (Optional).

I have a function to generate pdf-file in Yii2

private function savePDFPrint($data,$path)
    {
       ....
       $filename = $data['content'];
        ...
        $content = $this->renderPartial('/result/resultPrint',['id' => $id], true, true);// быстро
        $pdfPrint = new Pdf([
            'mode' => Pdf::MODE_UTF8,
            'filename' => $path,
            'destination' => Pdf::DEST_FILE,
            'content' => $content,
            'cssFile' => $cssfile,
            'options' => [
            ],
            'methods' => [
                'SetTitle' => $title,
                'SetSubject' => $subject,
                'SetAuthor' => $author,
                'SetCreator' => $creator,
                'SetKeywords' => $keywords,
            ]
        ]);
        $pdfPrint->render();
        ...
        return true;
    }

when i trying to call this function more than once

...
savePDFPrint($data1,$path1);
savePDFPrint($data2,$path2);
...

i got a error

"PHP Notice 'yii\base\ErrorException' with message 'Constant _MPDF_TEMP_PATH already defined"

I solved this in this way

/yii2-mpdf/src/Pdf.php, line 249
if( !defined( '_MPDF_TEMP_PATH' ))
   static::definePath('_MPDF_TEMP_PATH', "{$prefix}tmp{$s}");
if( !defined( '_MPDF_TTFONTDATAPATH' ))
   static::definePath('_MPDF_TTFONTDATAPATH', "{$prefix}ttfontdata{$s}");

But may be you have a better solution...

yii2-mpdf version: 1.0.6
[x] The bug happens consistently across all tested browsers
[x] This bug happens when using yii2-mpdf without other plugins.

kartik-v / yii2-mpdf

could not generate 2+ pdf per time #97

Prerequisites