lib/prince.php
public function convert_multiple_files_to_passthru($xmlPaths, &$msgs = array(), &$dats = array())
    {
        $pathAndArgs = $this->getCommandLine();
        $pathAndArgs .= '--structured-log=buffered ';

        foreach($xmlPaths as $xmlPath)
        {
            $pathAndArgs .= '"' . $xmlPath . '" ';
        }
        $pathAndArgs .= '-o -';

        return $this->convert_internal_file_to_passthru($pathAndArgs, $msgs, $dats);
    }
public function convert_multiple_files_to_passthru($xmlPaths, &$msgs = array(), &$dats = array())
    {
        $pathAndArgs = $this->getCommandLine();
        $pathAndArgs .= '--structured-log=buffered ';

        foreach($xmlPaths as $xmlPath)
        {
            $pathAndArgs .= '"' . $xmlPath . '" ';
        }
        $pathAndArgs .= '-o -';

        return $this->convert_internal_file_to_passthru($pathAndArgs, $msgs, $dats);
    }
Returns true if a PDF file was generated successfully.