PHPExcel笔记, mpdf导出

phpexcel常用处理

    ##导入类库
    require 'PHPExcel/Classes/PHPExcel.php';
    require 'PHPExcel/Classes/PHPExcel/Writer/Excel5.php'; //非07格式的写出类

    ##基础属性设定
    $objPHPExcel = \PHPExcel_IOFactory::load('a.xls'); //读入指定excel文件
    $objPHPExcel->setActiveSheetIndex(0); //指定活动工作表
    $objPHPExcel->getActiveSheet()->getDefaultStyle()->getFont()->setName('宋体');
    $objPHPExcel->getProperties()->setTitle('xxx');

    ##单元格编辑
    $objPHPExcel->getActiveSheet()->setCellValue('A3', 'xxx'); //设定A3单元格值为xxx

    ##单元格绘图
    $objDrawing = new \PHPExcel_Worksheet_Drawing();
    $objDrawing->setPath('a.jpg'); //指定图片路径。若要远程图片需PHPExcel/Classes/PHPExcel/Worksheet/Drawing.php:106处file_exists换成file_get_contents
    $objDrawing->setCoordinates('A4'); //指定在A4单元格绘图
    $objDrawing->setName('Photo');
    $objDrawing->setDescription('Photo');
    $objDrawing->setHeight(120);
    $objDrawing->setWidth(100);
    $objDrawing->setOffsetX(7);
    $objDrawing->setOffsetY(7);
    $objDrawing->setWorksheet($objPHPExcel->getActiveSheet());

    ##excel文件浏览器下载导出
    $filename='a.xls';
    $encoded_filename = rawurlencode($filename);
    $ua = $_SERVER["HTTP_USER_AGENT"];
    header('Content-type: application/vnd.ms-excel');
    if (preg_match("/MSIE/", $ua) || preg_match("/Trident\/7.0/", $ua) || preg_match("/Edge/", $ua)) {
      header('Content-Disposition: attachment; filename="' . $encoded_filename . '"');
    } else if (preg_match("/Firefox/", $ua)) {
      header("Content-Disposition: attachment; filename*=\"utf8''" . $filename . '"');
    } else {
      header('Content-Disposition: attachment; filename="' . $filename . '"');
    }
    header("Pragma:no-cache");
    header("Expires:0");
    $objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel5');
    $objWriter->save('php://output');

    ##excel文件html显示(可用于调试)
    $objWriter = new \PHPExcel_Writer_HTML($objPHPExcel);
    $objWriter->save('php://output');

利用mpdf库从phpexcel导出pdf文件

    $filename='a.pdf';
    $encoded_filename = rawurlencode($filename);
    $rendererName = \PHPExcel_Settings::PDF_RENDERER_MPDF; //指定通过mpdf类库导出pdf文件
    $rendererLibraryPath = 'PHPExcel/MPDF57'; //指定你下载的mpdf类库路径
    if (!\PHPExcel_Settings::setPdfRenderer(
      $rendererName,
      $rendererLibraryPath
    )) {
      die(
        'Please set the $rendererName and $rendererLibraryPath values' .
        PHP_EOL .
        ' as appropriate for your directory structure'
      );
    }
    header('Content-type: application/pdf');
    if (preg_match("/MSIE/", $ua) || preg_match("/Trident\/7.0/", $ua) || preg_match("/Edge/", $ua)) {
      header('Content-Disposition: attachment; filename="' . $encoded_filename . '"');
    } else if (preg_match("/Firefox/", $ua)) {
      header("Content-Disposition: attachment; filename*=\"utf8''" . $file_name . '"');
    } else {
      header('Content-Disposition: attachment; filename="' . $file_name . '"');
    }
    header("Pragma:no-cache");
    header("Expires:0");
    $objWriter = new \PHPExcel_Writer_PDF($objPHPExcel);
    $objWriter->setPreCalculateFormulas(false);
    $objWriter->save('php://output');


    ##############################
    ##pdf导出失败的一些错误解决方法
    ##############################

    ##1 pdf中文乱码问题
    PHPExcel/Classes/PHPExcel/Writer/PDF/mPDF.php:105处加两行设定：
    $pdf->useAdobeCJK = true;
    $pdf->SetAutoFont(AUTOFONT_ALL);

    ##2 类库里面多处preg_replace调用使用了元字符e，而部分低版本php不支持正则表达式e元字符
    e元字符的不当使用并导致pdf报错的触发点在类库里面大概有五六处吧，
    由于e元字符是一个shell下的子进程php调用，所以报错信息不会反馈到当前php进程中，故即便你配置了错误打印到屏幕， 页面也不会显示报错信息， 必须查看php报错日志
    查看php报错日志，把提示的preg_replace中元字符e的调用替换为preg_replace_callback形式的调用

    ##3 部分版本phpexcel类库有单元格样式判断错误
    lib/PHPExcel/Classes/PHPExcel/Writer/HTML.php:1236处加个if判断
    if (!$this->_useInlineCss) {
      $cssClass .= ' style' . $pSheet->getCell($endCellCoord)->getXfIndex();