<?php
  require_once('jpgraph/datamatrix/datamatrix.inc.php');
  
  $data = 'This is a datamatrix symbol';
  
  $outputfile = 'dm_ex6.png';
  
  // Create and set parameters for the encoder
  $encoder = DatamatrixFactory::Create();
  $encoder->SetEncoding(ENCODING_TEXT);
  
  // Create the image backend (default)
  $backend = DatamatrixBackendFactory::Create($encoder);
  $backend->SetModuleWidth(5);
  $backend->SetQuietZone(10);
  
  // Set other than default colors (one, zero, background)
  $backend->SetColor('navy','white');
  
  // Create the barcode from the given data string and write to output file
  $dir = dirname(__FILE__);
  $file = '<span style="font-weight:bold;">"'.$dir.'/'.$outputfile.'"</span>';
  try {
      $backend->Stroke($data,$outputfile);
      echo 'Barcode sucessfully written to file: '.$file;
  } catch (Exception $e) {
      $errstr = $e->GetMessage();
      $errcode = $e->GetCode();
      echo "Failed writing file: ".$file.'<br>';
      echo "Datamatrix error ($errcode). Message: $errstr\n";
  }
  
  ?>