Added option to suppress output of generated QR code. #10
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Usage Before:
Usage After this PR:
This change allows the QR code generation function to save the QR code image to a file without sending any output to the browser or client.
Reason:
An absolute path was needed for rendering the barcode in a PDF using the PHP mPDF library. However, the Barcode library was also outputting content to the browser with an echo statement. This PR suppresses the echo statement, allowing only the file to be saved."