Output of wsdl2php for http://www.webservicex.net/genericbarcode.asmx?WSDL

<?php
class GenerateBarCode {
  public $BarCodeParam; // BarCodeData
  public $BarCodeText; // string
}

class BarCodeData {
  public $Height; // int
  public $Width; // int
  public $Angle; // int
  public $Ratio; // int
  public $Module; // int
  public $Left; // int
  public $Top; // int
  public $CheckSum; // boolean
  public $FontName; // string
  public $BarColor; // string
  public $BGColor; // string
  public $FontSize; // float
  public $barcodeOption; // BarcodeOption
  public $barcodeType; // BarcodeType
  public $checkSumMethod; // CheckSumMethod
  public $showTextPosition; // ShowTextPosition
  public $BarCodeImageFormat; // ImageFormats
}

class BarcodeOption {
  const None = 'None';
  const Code = 'Code';
  const Typ = 'Typ';
  const Both = 'Both';
}

class BarcodeType {
  const Code_2_5_interleaved = 'Code_2_5_interleaved';
  const Code_2_5_industrial = 'Code_2_5_industrial';
  const Code_2_5_matrix = 'Code_2_5_matrix';
  const Code39 = 'Code39';
  const Code39Extended = 'Code39Extended';
  const Code128A = 'Code128A';
  const Code128B = 'Code128B';
  const Code128C = 'Code128C';
  const Code93 = 'Code93';
  const Code93Extended = 'Code93Extended';
  const CodeMSI = 'CodeMSI';
  const CodePostNet = 'CodePostNet';
  const CodeCodabar = 'CodeCodabar';
  const CodeEAN8 = 'CodeEAN8';
  const CodeEAN13 = 'CodeEAN13';
  const CodeUPC_A = 'CodeUPC_A';
  const CodeUPC_E0 = 'CodeUPC_E0';
  const CodeUPC_E1 = 'CodeUPC_E1';
  const CodeUPC_Supp2 = 'CodeUPC_Supp2';
  const CodeUPC_Supp5 = 'CodeUPC_Supp5';
  const CodeEAN128A = 'CodeEAN128A';
  const CodeEAN128B = 'CodeEAN128B';
  const CodeEAN128C = 'CodeEAN128C';
}

class CheckSumMethod {
  const None = 'None';
  const Modulo10 = 'Modulo10';
}

class ShowTextPosition {
  const TopLeft = 'TopLeft';
  const TopRight = 'TopRight';
  const TopCenter = 'TopCenter';
  const BottomLeft = 'BottomLeft';
  const BottomRight = 'BottomRight';
  const BottomCenter = 'BottomCenter';
}

class ImageFormats {
  const BMP = 'BMP';
  const EMF = 'EMF';
  const EXIF = 'EXIF';
  const GIF = 'GIF';
  const ICON = 'ICON';
  const JPEG = 'JPEG';
  const MemoryBMP = 'MemoryBMP';
  const PNG = 'PNG';
  const TIFF = 'TIFF';
  const WMF = 'WMF';
}

class GenerateBarCodeResponse {
  public $GenerateBarCodeResult; // base64Binary
}


/**
 * BarCode class
 *
 * Barcode generator
 *
 * @author    {author}
 * @copyright {copyright}
 * @package   {package}
 */
class BarCode extends SoapClient {

  private static $classmap = array(
                                    'GenerateBarCode' => 'GenerateBarCode',
                                    'BarCodeData' => 'BarCodeData',
                                    'BarcodeOption' => 'BarcodeOption',
                                    'BarcodeType' => 'BarcodeType',
                                    'CheckSumMethod' => 'CheckSumMethod',
                                    'ShowTextPosition' => 'ShowTextPosition',
                                    'ImageFormats' => 'ImageFormats',
                                    'GenerateBarCodeResponse' => 'GenerateBarCodeResponse',
                                   );

  public function BarCode($wsdl = "http://www.webservicex.net/genericbarcode.asmx?WSDL", $options = array()) {
    foreach(self::$classmap as $key => $value) {
      if(!isset($options['classmap'][$key])) {
        $options['classmap'][$key] = $value;
      }
    }
    parent::__construct($wsdl, $options);
  }

  /**
   * WebserviceX.NET barcode library that provides the means to create barcodes for printing and
   * display in any internet enabled applications. This web service supports Code 128, Industrial 2
   * of 5, Interleaved 2 of 5, Code 2 5 Matrix, Code 39, Code 39 Extended, Code 93, Code 93
   * Extended, Codabar, EAN13, EAN8, MSI, Postnet, Supp2, Supp5, UPC A, UPC E0 and UPC E1 barcode
   * formats. This Barcodes returns byte image. It supports following image format JPEG, GIF, PNG,
   * BMP, EMF, EXIF, ICON, MEMORY BMP, TIFF and WMF.
   *
   * @param GenerateBarCode $parameters
   * @return GenerateBarCodeResponse
   */
  public function GenerateBarCode(GenerateBarCode $parameters) {
    return $this->__soapCall('GenerateBarCode', array($parameters),       array(
            'uri' => 'http://www.webservicex.net/',
            'soapaction' => ''
           )
      );
  }

}

?>