windows环境下 php 将office文件(word/excel/ppt)转化为pdf(转)

extension=php_com_dotnet.dll // 移除前面的分号
com.allow_dcom = true // 改为true

public function ppt_to_pdf() {
    $srcfilename = 'E:/aa.ppt';
    $destfilename = 'E:/aa.pdf';
    try {
        if(!file_exists($srcfilename)){
            return;
        }
        $ppt = new \COM("powerpoint.application") or die("Unable to instantiate Powerpoint");
        $presentation = $ppt->Presentations->Open($srcfilename, false, false, false);
        $presentation->SaveAs($destfilename,32,1);
        $presentation->Close();
        $ppt->Quit();
    } catch (\Exception $e) {
        if (method_exists($ppt, "Quit")){
            $ppt->Quit();
        }
        return;
    }
}

public function excel_to_pdf() {
    $srcfilename = 'E:/aa.xls';
    $destfilename = 'E:/aa.pdf';
    try {
        if(!file_exists($srcfilename)){
            return;
        }
        $excel = new \COM("excel.application") or die("Unable to instantiate excel");
        $workbook = $excel->Workbooks->Open($srcfilename, null, false, null, "1", "1", true);
        $workbook->ExportAsFixedFormat(0, $destfilename);
        $workbook->Close();
        $excel->Quit();
    } catch (\Exception $e) {
         echo ("src:$srcfilename catch exception:" . $e->__toString());
        if (method_exists($excel, "Quit")){
            $excel->Quit();
        }
        return;
    }
}

public function doc_to_pdf() {
    $srcfilename = 'E:/aa.doc';
    $destfilename = 'E:/aa.pdf';
    try {
        if(!file_exists($srcfilename)){
            return;
        }
        $word = new \COM("word.application") or die("Can't start Word!");
        $word->Visible=0;
        $word->Documents->Open($srcfilename, false, false, false, "1", "1", true);
        $word->ActiveDocument->final = false;
        $word->ActiveDocument->Saved = true;
        $word->ActiveDocument->ExportAsFixedFormat(
            $destfilename,
            17,                         // wdExportFormatPDF
            false,                      // open file after export
            0,                          // wdExportOptimizeForPrint
            3,                          // wdExportFromTo
            1,                          // begin page
            5000,                       // end page
            7,                          // wdExportDocumentWithMarkup
            true,                       // IncludeDocProps
            true,                       // KeepIRM
            1                           // WdExportCreateBookmarks
        );
        $word->ActiveDocument->Close();
        $word->Quit();
    } catch (\Exception $e) {
        if (method_exists($word, "Quit")){
            $word->Quit();
        }
        return;
    }
}