<?php require_once('jpgraph/datamatrix/datamatrix.inc.php'); $data = '123456'; $encoder = DatamatrixFactory::Create(); $backend = DatamatrixBackendFactory::Create($encoder); $backend->SetModuleWidth(3); // Create the barcode from the given data string and write to output file try { $backend->Stroke($data); } catch (Exception $e) { $errstr = $e->GetMessage(); echo "Datamatrix error message: $errstr\n"; } ?>