如何在 PHPExcel 中设置流内容？ [关闭]

Question

我正在使用 PHP 和 PHPExcel 从数据库中获取图像文件名并执行流读取器操作。我使用setImageResource 函数设置了我的图像，但它没有按预期工作。这是我的代码：

<?php
    require_once dirname(__FILE__) . '/../Classes/PHPExcel.php';
    require_once '../classes/PHPExcel/IOFactory.php';
    error_reporting(E_ALL);
    ini_set('display_errors', TRUE);
    ini_set('display_startup_errors', TRUE);
    date_default_timezone_set('Asia/Calcutta');

    if (PHP_SAPI == 'cli')
        die('This example should only be run from a Web Browser');

    $rendererName = PHPExcel_Settings::PDF_RENDERER_DOMPDF;
    $rendererLibrary = 'dompdf.php';
    $rendererLibraryPath = dirname(__FILE__) . '/../libs/classes/dompdf/';

    // Create new PHPExcel object
    $objPHPExcel = new PHPExcel();

    $objPHPExcel->setActiveSheetIndex(0);
    $objPHPExcel->getActiveSheet()->SetCellValue('A1', 'Tes');
    $objPHPExcel->getActiveSheet()->SetCellValue('B1', 'Image...');
    $objPHPExcel->getActiveSheet()->setTitle('Simple');
    $img = imagecreatefrompng('C:/Users/Downloads/logo.png');
    $objDrawing = new PHPExcel_Worksheet_MemoryDrawing();
    $objDrawing->setName('Test image');
    $objDrawing->setDescription('Test image');
    $objDrawing->setImageResource($img);
    $objDrawing->setRenderingFunction(PHPExcel_Worksheet_MemoryDrawing::RENDERING_PNG);
    $objDrawing->setMimeType(PHPExcel_Worksheet_MemoryDrawing::MIMETYPE_DEFAULT);
    $objDrawing->setHeight(150);
    $objDrawing->setCoordinates('A4');
    $objDrawing->setWorksheet($objPHPExcel->getActiveSheet());



    if (!PHPExcel_Settings::setPdfRenderer($rendererName,$rendererLibraryPath)) {
        die(
        'NOTICE: Please set the $rendererName and $rendererLibraryPath values' .
        '<br />' .
        'at the top of this script as appropriate for your directory structure'
        );
    } 

    $objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'PDF');
    $objWriter->save('test.pdf');
    exit;

Answer 1

好吧，首先PHPExcel_Worksheet_MemoryDrawing() 无法解决您的问题，如果您坚持使用流内容并将其传递到您的工作表，您的 PDF 将不会呈现您的图像。但是如果你也想渲染你的图像，你可以使用`PHPExcel_Worksheet_Drawing()'。你可以这样欺骗它：

1. 您可以从stream_get_contents 或file_get_contents 检索您的图像文件
2. 然后将其重新创建到文件中。
3. 最后你将图像文件路径传递给$objDrawing->setPath($path_to_your_image);

因此，如果您也想将图像渲染到工作表中，则必须使用 PHPExcel_Worksheet_Drawing()，为此您必须指向文件路径才能渲染该图像。

我认为这是与 DomPDF 一起工作的 PHPExcel 的问题。因此，请在此处保留一些讨论并将您的 objDrawing 编辑为：

$objDrawing = new PHPExcel_Worksheet_Drawing();
$objDrawing->setPath('logo.png');

对于我制作的完整示例，试试这个：

include 'PHPExcel.php';
require_once("dompdf/dompdf_config.inc.php");


$rendererName = PHPExcel_Settings::PDF_RENDERER_DOMPDF;
$rendererLibrary = 'dompdf.php';
$rendererLibraryPath = dirname(__FILE__). '/dompdf';


$objPHPExcel = new PHPExcel();
$objPHPExcel->setActiveSheetIndex(0);
$objPHPExcel->getActiveSheet()->SetCellValue('A1', 'Tes');
$objPHPExcel->getActiveSheet()->SetCellValue('B1', 'Image...');
$objPHPExcel->getActiveSheet()->setTitle('Simple');

$objPHPExcel->getActiveSheet()
->getColumnDimension('A')
->setWidth(50);

$objPHPExcel->getActiveSheet()
->getRowDimension('2')
->setRowHeight(200);

// $img = imagecreatefrompng('logo.png');
$data = file_get_contents("logo.png");
// $img = imagecreatefromstring($data);
$fp = fopen("logo1.png","w");
fwrite($fp,$data);
fclose($fp);

$objDrawing = new PHPExcel_Worksheet_Drawing();
$objDrawing->setPath('logo1.png');

// $objDrawing = new PHPExcel_Worksheet_MemoryDrawing();
$objDrawing->setName('Test image');
$objDrawing->setDescription('Test image');
// $objDrawing->setImageResource($img);
// $objDrawing->setRenderingFunction(PHPExcel_Worksheet_MemoryDrawing::RENDERING_PNG);
// $objDrawing->setRenderingFunction(PHPExcel_Worksheet_MemoryDrawing::RENDERING_DEFAULT);
// $objDrawing->setMimeType(PHPExcel_Worksheet_MemoryDrawing::MIMETYPE_DEFAULT);
$objDrawing->setHeight(150);
$objDrawing->setCoordinates('A2');
$objDrawing->setWorksheet($objPHPExcel->getActiveSheet());

if (!PHPExcel_Settings::setPdfRenderer($rendererName,$rendererLibraryPath)) {
    die(
        'NOTICE: Please set the $rendererName and $rendererLibraryPath values' .
        '<br />' .
        'at the top of this script as appropriate for your directory structure'
    );
}

$objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel2007');
$objWriter->save(str_replace('.php', '.xlsx', __FILE__));

$objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'PDF');
$objWriter->save('test.pdf');

echo date('H:i:s') . " Done writing file.\r\n";

很高兴为您提供帮助，希望对您有所帮助:)