得到解析错误，但我看不出任何错误

Here is my code:

这是我的代码:

if($_POST['format'] == "csv")
{
Line 174 -> $objWriter = new PHPExcel_IOFactory::createWriter($objPHPExcel, 'CSV');
         $objWriter->save($FNAME);

} else {
         $objWriter = new PHPExcel_Writer_Excel2007($objPHPExcel);
         $objWriter->save($FNAME);
}
if($_POST['format