Newbie here. The problem is that I currently have written a method which checks uploaded file size and extension in order to validate it. However, checking extensions is not a solution as that kind of validation may cause a lot of problems. What I want to do is to check the actual file type and validate it without using extension method. I have tried to use Newbie here. The problem is that I currently ha
阅读背景：
jQuery如何在不检查扩展名的情况下检查上传的文件是否是图像？
来源：互联网
分享到：
