PHP - hash of the uploaded file

Question

I would like to hash the contents of the downloaded file in MD5. The file will not be saved locally, so it exists only in the tmp directory.

How can i do this? Thanks.

Answer 1

You can use md5_file() or sha1_file() . For example, if your post variable is filevar :

 $myhash = md5_file($_FILES['filevar']['tmp_name']); 

Answer 2

You can use md5_file() even in your temporary file.

Answer 3

MD5() for string and md5_file() for files