datamatrix_ex0.php

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    <?php
    require_once('jpgraph/datamatrix/datamatrix.inc.php');

    $data = 'The first datamatrix';
    $encoder = DatamatrixFactory::Create();
    $encoder->SetEncoding(ENCODING_ASCII);
    $backend = DatamatrixBackendFactory::Create($encoder);

    // We increase the module width to 3 pixels
    $backend->SetModuleWidth(3);

    try {
        $backend->Stroke($data);
    } catch (Exception $e) {
        echo 'Datamatrix error: '.$e->GetMessage()."\n";
        exit(1);
    }
    ?>