core-bundle/src/Security/TwoFactor/Authenticator.php
public function getQrCode(User $user, Request $request): string
    {
        $renderer = new ImageRenderer(
            new RendererStyle(180, 0),
            new SvgImageBackEnd()
        );

        $writer = new Writer($renderer);

        return $writer->writeString($this->getProvisionUri($user, $request));
    }
public function getQrCode(User $user, Request $request): string
    {
        $renderer = new ImageRenderer(
            new RendererStyle(180, 0),
            new SvgImageBackEnd()
        );

        $writer = new Writer($renderer);

        return $writer->writeString($this->getProvisionUri($user, $request));
    }
Generates the QR code as SVG and returns it as a string.