PHPExcel读取EXCEL中的图片并保存到本地的方法

require_once './Classes/PHPExcel.php';
$objPHPExcel = new PHPExcel();
$objReader = PHPExcel_IOFactory::createReader('Excel5');  //加载2003的
$objPHPExcel = $objReader->load("goods_list.xls");  //载入文件
foreach ($objPHPExcel->getSheet(0)->getDrawingCollection() as $k => $drawing) {
        $codata = $drawing->getCoordinates(); //得到单元数据 比如G2单元
        $filename = $drawing->getIndexedFilename();  //文件名
        ob_start();
        call_user_func(
            $drawing->getRenderingFunction(),
            $drawing->getImageResource()
        );
        $imageContents = ob_get_contents();
        file_put_contents('pic/'.$codata.'_'.$filename.'.jpg',$imageContents); //把文件保存到本地
        ob_end_clean();
}