Php converts an office into a pdf file using openoffice. how can this problem be solved?

Php uses openoffice to convert office to pdf format, such as Question & nbsp; find the code function & nbsp; word2pdf ($ doc_url, & nbsp; $ output_url) on the Internet) {// Invoke & nbsp; th php converts office to pdf using openoffice
Find the code from the internet

function word2pdf($doc_url, $output_url)
{
//Invoke the OpenOffice.org service manager
$osm = new COM("com.sun.star.ServiceManager") or die ("Please be sure that OpenOffice.org is installed.\n");
//Set the application to remain hidden to avoid flashing the document onscreen
$args = array($this->MakePropertyValue("Hidden",true,$osm));
//Launch the desktop
$top = $osm->createInstance("com.sun.star.frame.Desktop");
//Load the .doc file, and pass in the "Hidden" property from above
$oWriterDoc = $top->loadComponentFromURL($doc_url,"_blank", 0, $args);
//Set up the arguments for the PDF output
$export_args = array($this->MakePropertyValue("FilterName","writer_pdf_Export",$osm));
//Write out the PDF
$oWriterDoc->storeToURL($output_url,$export_args);
$oWriterDoc->close(true);
}



public function test1()
{
$output_dir = SERVERBASE . 'client/files/proj_workaholic/office/pdf/';
$doc_file = SERVERBASE . 'client/files/proj_workaholic/office/office/helloWorld.doc';
$pdf_file = "hellowWorld.pdf";
$output_file = $output_dir . $pdf_file;
//$doc_file = "file:///" . $doc_file;
//$output_file = "file:///" . $output_file;
$this->word2pdf($doc_file,$output_file);

}
test();

System: window xp
Software: openoffice3.3
Server: xampp
Php. ini-com. allow_dcom = true

Error: Fatal error: Uncaught exception 'com _ exception' with message 'failed' to create com object 'com. sun. star. ServiceManager 'in "the project of path"


------ Solution --------------------
OpenOffice.org needs to be installed
------ Solution --------------------
1. check whether OpenOffice has been installed.
2. run the following command to start the OpenOffice service:
Cd C: \ Program Files \ OpenOffice.org 3 \ program
C: \ Program Files \ OpenOffice.org 3 \ program> soffice-headless-accept = "socket, host
= 127.0.0.1, port = 8100; urp; "-nofirststartwizard
And try again.