qrexample12.php

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    <?php
    // Include the library
    require_once ('jpgraph/QR/qrencoder.inc.php');

    // Example 11 : Generate postscript output

    $data         = 'ABCDEFGH01234567'; // Data to be encoded
    $version      = -1;  // -1 = Let the library decide version (same as default)
    $corrlevel    = QRCapacity::ErrH; // Error correction level H (Highest possible)
    $modulewidth  = 1;

    // Create a new instance of the encoder using the specified
    // QR version and error correction
    $encoder = new QREncoder($version,$corrlevel);

    // Use the image backend
    $backend = QRCodeBackendFactory::Create($encoder, BACKEND_ASCII);

    // Set the module size
    $backend->SetModuleWidth($modulewidth);

    // Store the barcode in the specifed file
    $ps_str = $backend->Stroke($data);

    echo '<pre>'.$ps_str.'</pre>';
    ?>