barcode_image.php
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<?php
require_once "jpgraph/jpgraph.php";
require_once "jpgraph/jpgraph_canvas.php";
require_once "jpgraph/jpgraph_barcode.php";
$params = array(
array('code',1),array('data',''),array('modwidth',1),array('info',false),
array('notext',false),array('checksum',false),array('showframe',false),
array('vertical',false) , array('backend','IMAGE'), array('file',''),
array('scale',1), array('height',70), array('pswidth','') );
$n=count($params);
for($i=0; $i < $n; ++$i ) {
$v = $params[$i][0];
if( empty($_GET[$params[$i][0]]) ) {
$$v = $params[$i][1];
}
else
$$v = $_GET[$params[$i][0]];
}
if( $modwidth < 1 || $modwidth > 5 ) {
echo "<h4>Module width must be between 1 and 5 pixels</h4>";
}
elseif( $data==="" ) {
echo "<h3>Please enter data to be encoded, select symbology and press 'Ok'.</h3>";
echo "<i>Note: Data must be valid for the choosen encoding.</i>";
}
elseif( $code==-1 ) {
echo "<h4>No code symbology selected.</h4>";
}
elseif( $height < 10 || $height > 500 ) {
echo "<h4> Height must be in range [10, 500]</h4>";
}
elseif( $scale < 0.1 || $scale > 15 ) {
echo "<h4> Scale must be in range [0.1, 15]</h4>";
}
else {
if( $code==20 ) {
$encoder = BarcodeFactory::Create(6);
$encoder->UseExtended();
}
else {
$encoder = BarcodeFactory::Create($code);
}
$b = $backend=='EPS' ? 'PS' : $backend;
$b = substr($backend,0,5) == 'IMAGE' ? 'IMAGE' : $b;
$e = BackendFactory::Create($b,$encoder);
if( substr($backend,0,5) == 'IMAGE' ) {
if( substr($backend,5,1) == 'J' )
$e->SetImgFormat('JPEG');
}
if( $e ) {
if( $backend == 'EPS' )
$e->SetEPS();
if( $pswidth!='' )
$modwidth = $pswidth;
$e->SetModuleWidth($modwidth);
$e->AddChecksum($checksum);
$e->NoText($notext);
$e->SetScale($scale);
$e->SetVertical($vertical);
$e->ShowFrame($showframe);
$e->SetHeight($height);
$r = $e->Stroke($data,$file,$info,$info);
if( $r )
echo nl2br(htmlspecialchars($r));
if( $file != '' )
echo "<p>Wrote file $file.";
}
else
echo "<h3>Can't create choosen backend: $backend.</h3>";
}
?>