Question

How do I configure php-barcode to generate code with the code128 encoding?

I’ve installed php-barcode, but I don’t know how to change the encoding.

Answer 1

From the docs in the README included with the source:

function barcode_encode(code, encoding)

encodes $code with $encoding using genbarcode OR built-in encoder

if you don’t have genbarcode only EAN-13/ISBN is possible

So you need to have genbarcode installed, and then just call $barcode = barcode_encode($yourCode, '128');

You should take a moment and read through the README, as it explains how to use the library.