(class and these examples provided in the tarball).
By Thomas Harding
Distribution and modifications alloweds according the terms of GNU LGPL.
The class products a zeros and ones suit, suitable for any purpose
(here: pdf printing of the barcodes).
usage:
usage:
$barcode = new code128barcode();
$code = $barcode->output('code string');
...
$code = $barcode->output('another code string');
$barcode->->nozerofill = true;
$code = $barcode->output('plain width barcode');
$barcode->unoptimized = true;
$code = $barcode->output('laposte colissimo 123456 barcode');
a very simple example with GD is
here.
Needed fpdf class (Also free software) is disponible at http://fpdf.org
Optional LGPL PrintIPP class (for direct printing) is disponible at www.nongnu.org.
Code128 barcode specifications be found HERE.