PHPExcel - 在加载和写入后尝试插入图像时出错 [英] PHPExcel - error while trying to insert image after loading and writing

问题描述

我在很多帖子中都看到了这个问题.但没有人得到答复.第一次在 excel 文件中插入图像时，没有问题.但是如果我再次加载该 excel 文件并尝试在另一个单元格中插入另一个图像，则会出现以下问题:

i saw this problem in so many posts. but none have been answered. first time when I insert image in an excel file, no problem is there.but if i load that excel file again and try to insert another image in another cell,following problem occurs:

Fatal error: Uncaught exception 'PHPExcel_Writer_Exception' with message 'File zip://C:\xampp\htdocs\Well\test.xlsx#xl/media/well1.bmp does not exist' in C:\xampp\htdocs\Well\Classes\PHPExcel\Writer\Excel2007\ContentTypes.php:242 Stack trace: #0 C:\xampp\htdocs\Well\Classes\PHPExcel\Writer\Excel2007\ContentTypes.php(181): PHPExcel_Writer_Excel2007_ContentTypes->_getImageMimeType('zip://C:\xampp\...') #1 C:\xampp\htdocs\Well\Classes\PHPExcel\Writer\Excel2007.php(246): PHPExcel_Writer_Excel2007_ContentTypes->writeContentTypes(Object(PHPExcel), false) #2 C:\xampp\htdocs\Well\test.php(125): PHPExcel_Writer_Excel2007->save('test.xlsx') #3 {main} thrown in C:\xampp\htdocs\Well\Classes\PHPExcel\Writer\Excel2007\ContentTypes.php on line 242.

这是我要绘制的代码:

`$objDrawing = new PHPExcel_Worksheet_Drawing();
$objDrawing->setName('image');
$objDrawing->setDescription('nnnnn');
$objDrawing->setPath('images/well.bmp');
$objDrawing->setCoordinates('I'.$s);
$objDrawing->setWorksheet($objPHPExcel->getActiveSheet());`

我搜索了很多，看到了一些关于它的帖子.但他们都没有得到答复.

I searched lot and I saw some posts regarding it. but none of them have been answered.

我的代码:

require_once 'Classes/PHPExcel.php';
require_once 'Classes/PHPExcel/IOFactory.php';
$name='statistics.xlsx';
if(file_exists($name))
{
 $objPHPExcel = PHPExcel_IOFactory::load($name);
 $lastRow = $objPHPExcel->getActiveSheet()->getHighestRow();
 $j=$lastRow+10;
}
else
{
 $j=1;
 $objPHPExcel = new PHPExcel();
 }
 $i='A';

 $objPHPExcel->setActiveSheetIndex(0);

// I am not writing the entire data

$objPHPExcel->getActiveSheet()->setCellValue($i++.$j, 'name');

$objDrawing = new PHPExcel_Worksheet_Drawing();
$objDrawing->setName('image');
$objDrawing->setDescription('image');
$objDrawing->setPath('image.png');
$objDrawing->setCoordinates('E'.$s);
$objDrawing->setWorksheet($objPHPExcel->getActiveSheet());

$objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel2007');
$objWriter->save($name);

推荐答案

我认为这是 Classes\PHPExcel\Writer\Excel2007.php 中 PHPExcel 的一个错误.很容易修复.

I think this is a bug in PHPExcel in Classes\PHPExcel\Writer\Excel2007.php. Its easy to fix.

简短的回答是:注释掉或删除第 235-237 行.那将是这个代码:

Short answer is: comment out or remove lines 235-237. That would be this code:

        if (file_exists($pFilename)) {
            unlink($pFilename);
        }

然后您的代码将起作用.我已经检查过了，它现在对我有用.

Your code will work then. I've checked, it works for me now.

现在，一些更长的解释.在第 235-243 行有这样的代码:

Now, some longer explanation. On lines 235-243 there is this code:

        if (file_exists($pFilename)) {
            unlink($pFilename);
        }
        // Try opening the ZIP file
        if ($objZip->open($pFilename, $zipOverWrite) !== true) {
            if ($objZip->open($pFilename, $zipCreate) !== true) {
                throw new PHPExcel_Writer_Exception("Could not open " . $pFilename . " for writing.");
            }
        }

现在，在这段代码中，三件事依次发生:

Now, in this code, three things take place in order:

1. 如果我们将数据保存到现有文件中，则该文件将被删除 (unlink)
2. 如果我们要将数据保存到现有文件，请覆盖此文件
3. 如果我们要将数据保存到不存在的文件中，请创建它

如您所见，第 2 步的操作永远不会执行，因为第 1 步中的文件总是被删除.在此过程中，所有以前存在的文件附件都将丢失.这就是为什么稍后您会收到错误 File XXX does not exist - 事实上，您早期的图像文件不存在于新创建的文件中.

As you see, operation from step 2 is never executed because in step 1 file is always deleted. And in this process all previously existing file attachments are lost. That's why later you get error File XXX does not exist - indeed, your earlier image files are not present in newly created file.

此问题的明显解决方法是删除步骤 1.如果文件存在，则应将其覆盖.我没有看到第 1 步的任何合乎逻辑的解释.也许它是一些旧代码的遗留物.

Obvious fix to this problem is to remove step 1. If file exists, it should be overwritten. I do not see any logical explanation for step 1. Maybe its a left over from some old code.

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