Control the Appearance of Code Text in PHP

 public static function set_appearance($dataDir=null){

$bb = new BarCodeBuilder();

\# Set up code text (data to be encoded)

$bb->setCodeText("1234567");

\# Set up code text color

$color=new Color();

$bb->setCodeTextColor($color->RED);

\# Set the location of the code text to above the barcode

$codeLocation=new CodeLocation();

$bb->setCodeLocation($codeLocation->Above);

#Increase the space between code text and barcode to 1 point

$bb->setCodeTextSpace(1.0);

\# Set the symbology type to Code128

$symbology=new Symbology();

$bb->setSymbologyType($symbology->Code128);

\# Save the image to your system and set its image format to Jpeg

$barCodeImageFormat=new BarCodeImageFormat();

$bb->save($dataDir . "barcode.jpg", $barCodeImageFormat->Jpeg);

\# Display Status

print "Barcode with custom appearance saved as JPEG image successfully.".PHP_EOL;

}