barcode 128 fpdf php

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I made a ticket in php, and I use font barcode 128 to mount the barcode. But as I have seen in an html ticket template, it has a start and stop on the ticket, so the reader will recognize where it starts and where it ends. I've searched everywhere on the internet and found no content to explain this. Does anyone know what these start and stop characters are?

    
asked by anonymous 04.03.2016 / 19:45

1 answer

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Dude has an explanation here . I'm not giving a very complete answer, but I hope it helps.

    
05.03.2016 / 03:21