How to determine whether there are pictures in the file when uploading an Excel file in PHP

  $excelPath = 'Test.xls';

  $objReader = PHPExcel_IOFactory::createReader('Excel5');
  $objReader->setReadDataOnly(true);

  $objPHPExcel = $objReader->load($excelPath);
  $currentSheet = $objPHPExcel->getActiveSheet();
  $AllImages= $currentSheet->getDrawingCollection();

 if(count($AllImages) > 0) {
   //处理
}
?>