generate qr code with bacon/bacon-qr-code not working - laravel-5

Question

I tried using your sample code on both an existing image and a non-existing image .
Both case failed , and no image is generated on the latter.
first trial:
$renderer = new \BaconQrCode\Renderer\Image\Png();
$renderer->setHeight(256);
$renderer->setWidth(256);
$writer = new \BaconQrCode\Writer($renderer);
$writer->writeFile('Hello World!', 'qrcode.png');
i then thought i could just write string instead of writing into a file but when i echo i still don't get image
2nd trial :
`
$renderer = new \BaconQrCode\Renderer\Image\Png();
$renderer->setHeight(256);
$renderer->setWidth(256);
$writer = new \BaconQrCode\Writer($renderer);
$str= $writer->writeString('Hello World!');
header('Content-Type:image/png');
echo $str;`
i get the code below
�PNG IHDR�?1IDATx����n�0A'����kP!��؝9��������~������' �4�&�#�Hi M� �4�&�#�Hi M� �4�&�#�Hi M� �4�&�#�Hi M� �4�&�#�Hi M� �4����x�^���3:|������u�+W�_u?O��9�p�'��4�&�#�Hi#�W�Z'^��?m=������|�Hi M� �4�6zpeպ�u�U�럾N?����<Hi M� �4�&Ҏ����#�'i M� �4�&�#�9�F�� ��<Hi M� �4�&Ҏ�L[/�v?w�~�?� #�Hi M� �4�6z0�|�?�>�~A�|���!M� �4�&�#�H�*���}��� M� �4�&�#�H����S_��������w'�� #�Hi M� �4�6b���u�����Ͽ�I�&�#�Hi M����~��u�Lx�<�^�����i M� �4�&�F�V�ǯz��ʴu��s�Us���Y�Q�0�&�#�Hi m�9�������U��w�|J� �4�&�#�H18�)�ﾾs��0 M� �4�&�#ڈ9���v���G�>E����̓M#�Hi M� ���\������<�������'i M� �4�&�#��9�����=��)� �'i M� �4�&�#ڑs�iv��?��?�'i M� �4�&�#�9�FO�{�j>P�3x�&�#�Hi M�98e�yչ����_�sw��>��4�&�#�Hi m����kv��OX��F�Hi M� �4��5y�v� M� �4�&�#�Hi M� �4�&�#�Hi M� �4�&�#�Hi M� �4�&�#�Hi M� �4�&�#�Hi M� ���mF�sE�}IEND�B�
What's the problem ?
any help ?

Answer 1

If you encode the output of the writeString to base64 you can then use it to show a base64 image in HTML.
use BaconQrCode\Renderer\ImageRenderer;
use BaconQrCode\Renderer\Image\ImagickImageBackEnd;
use BaconQrCode\Renderer\RendererStyle\RendererStyle;
use BaconQrCode\Writer;
$renderer = new ImageRenderer(
new RendererStyle(200),
new ImagickImageBackEnd()
);
$writer = new Writer($renderer);
$qr_image = base64_encode($writer->writeString($string));
And show it as an image like this.
<img src="data:image/png;base64, <?php echo $qr_image; ?> " />

Answer 2

I finally decided to use the package simpleqr-code .
link here :https://www.simplesoftware.io/docs/simple-qrcode