php determines whether the uploaded Excel file contains pictures and PHPExcel library knowledge

$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) { 
// To deal with  
}