I can not operate the PHPJasperXML 0.9 when testing localhost/phpjasperxml/sample1.php, goes blank and nothing happens. <?php require_once('class/fpdf/fpdf.php');require_once("class/PHPJasperXML.inc.php");//require_once('setting.php'); $xml = simplexml_load_file('sample1.jrxml'); $PHPJasperXML = new PHPJasperXML();//$PHPJasperXML->debugsql=true;$PHPJasperXML->arrayParameter=array("parameter1"=>1);$PHPJasperXML->xml_dismantle($xml); $PHPJasperXML->transferDBtoArray("localhost","root","","phpjasperxml");$PHPJasperXML->outpage("I"); //page output method I:standard output D:Download file ?>