SVG output

[hyjk2000]

Vector formats are useful for QR Codes. Given the popularity and browser support of SVG, I think many people would like to have SVG output in this project.

[endroid]

I agree, this would be a useful feature. Hope anyone is willing to contribute on this.

[lahdekorpi]

I'm guessing this ain't happening?

[endroid]

Not unless someone is willing to contribute on this feature.

[endroid]

Looks like the new core library used in 2.x supports this feature. Please try it and let me know if this works for you. Please note that documentation of 2.x is not yet up to date and some features like adding a logo or a label still need to be ported to this new version.

[Emilio-Staropoli]

Doesn't work for me, I'm trying
writeString(SvgWriter::class)
but I always get a png image. Tried playing around a bit (with MIME type etc) but to no avail: I get an encoding error when using image/svg+xml
Please help :(

[simondowdles]

@Emilio-Staropoli

The SVG works perfectly. Here is how I used it:

$qrCode = new QrCode( get_site_url() . '/some/path/to/api/' );
            $qrCode
                ->setMargin(10)
                ->setEncoding('UTF-8')
                ->setErrorCorrectionLevel( ErrorCorrectionLevel::HIGH )
                ->setBackgroundColor( [ 'r' => 255, 'g' => 255, 'b' => 255 ] )
                ->setForegroundColor( [ 'r' => 0, 'g' => 0, 'b' => 0 ] )
                ->setLabel( 'Test', 12, SD_PATH . 'vendor/endroid/qrcode/assets/noto_sans.otf', LabelAlignment::CENTER, [ 'b' => 20 ] )
                ->setLogoPath( SD_PATH . 'assets/img/eye.png')
                ->setLogoWidth( 150 )
                ->setSize(200)
                ->setWriterByName('png');
            
            $svg = new SvgWriter();
            
            echo $svg->writeString( $qrCode ) ;

It's important that you pass your original QrCode class instance back to SvgWriter, and in my case this was $qrCode instance above.

Of course there will be things like logos that won't work as you can't convert bitmap to vector, but for a quick SVG solution it works perfectly fine! I also do not see any code that allows for the label to be rendered using SVG.

The SVG also displays fine when just echo / printing it out, whereas the PNG needed to be base64_encoded as a data URI.

[endroid]

@Emilio-Staropoli you should use the setWriter() method to set your writer or instantiate the SvgWrtier yourself and use its writeString method.

[coffeduong]

1 more thing, set header header('Content-Type: '.$svg->getContentType()); to help browser understand it's SVG image