How to rename the downloaded file with extension

Question

I am able to rename the downloaded attachments with image1 , image2 .... n so on.

but it is only displaying a blank file , and renaming with the name... but how to give extension to display the attachment?

I am using rename function which is working for my code,

how will I add extension?

rename($image, $all);

(renaming downloaded file with the above mentioned names)

Answer 1

Try to just give extension to your name:

rename($image, $newtname.'.jpeg')

or

rename($image, $newtname.'.png')

etc.

Answer 2

尝试

rename($image, $all.'.jpg'); // you can change to any extension you like