Rectangular Extension of Data Matrix

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In the transition from 98 to 99 errors occur. There is no indication where is that you may only use 98 characters.

Test setup:

    $IMAGE_RESOURCE = imagecreatetruecolor( 600, 600 );
    $black  = imagecolorallocate( $IMAGE_RESOURCE, 0x00, 0x00, 0x00 );
    $white  = imagecolorallocate( $IMAGE_RESOURCE, 0xff, 0xff, 0xff );
    imagefilledrectangle( $IMAGE_RESOURCE, 0, 0, 600, 600, $white );
    $x = 300;
    $y = 300;
    $angle = 0;
    $property_array = array( 'code' => str_repeat( '1', 99 ), 'rect' => true );
    $width = null;
    $height = null;
    $data = Barcode::gd( $IMAGE_RESOURCE, $black, $x, $y, $angle, 'datamatrix', $property_array, $width, $height );

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October 23, 2015 DIN will publish the new standard DIN 16587 Rectangular Extension of Data Matrix. http://www.eurodatacouncil.org/en/news/46-extended-rectangular-data-matrix.html