如何在phpexcel中添加图像？

Question

任何人都可以在phpexcel中给我插入图片的示例编码

我尝试使用此代码，但excel文件无法打开，因为格式扩展无效

$gdImage = imagecreatefromjpeg('images/officelogo.jpg');
// Add a drawing to the worksheetecho date('H:i:s') . " Add a drawing to the worksheet\n";
$objDrawing = new PHPExcel_Worksheet_MemoryDrawing();
$objDrawing->setName('Sample image');$objDrawing->setDescription('Sample image');
$objDrawing->setImageResource($gdImage);
$objDrawing->setRenderingFunction(PHPExcel_Worksheet_MemoryDrawing::RENDERING_JPEG);
$objDrawing->setMimeType(PHPExcel_Worksheet_MemoryDrawing::MIMETYPE_DEFAULT);
$objDrawing->setHeight(150);
$objDrawing->setWorksheet($objPHPExcel->getActiveSheet());
$objDrawing->setCoordinates('A3');