datamatrix_ex7.php
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<?php // content="text/plain; charset=utf-8"
require_once('jpgraph/datamatrix/datamatrix.inc.php');
 
$data = 'A Datamatrix barcode';
 
// Create and set parameters for the encoder
$encoder = DatamatrixFactory::Create();
$encoder->SetEncoding(ENCODING_BASE256);
 
// Create the image backend (default)
$backend = DatamatrixBackendFactory::Create($encoder, BACKEND_PS);
$backend->SetModuleWidth(3);
 
try {
    $ps_txt = $backend->Stroke($data);
    echo '<pre>'.$ps_txt.'</pre>';
} catch (Exception $e) {
    $errstr = $e->GetMessage();
    echo "Datamatrix error message: $errstr\n";
}
 
?>