If you upload a file to PHP that exceeds upload_max_filesize, does the upload terminate?

Question

As in title.

I have a upload_max_filesize limit of 2meg, if I upload a 3meg file will it stop uploading after 2megs or carry on until the full 3megs have been uploaded before deciding it's too big?

Answer 1

will it stop uploading after 2megs or carry on until the full 3megs have been uploaded before deciding it's too big?

The full 3 megs will be uploaded. The request is only then passed on to PHP, which will decide that it's too big.

The error flag will be populated as pointed out by @Steve.

IIRC, it's different if you hit Apache's LimitRequestBody size: The request will be terminated immediately upon hitting the limit and an error page displayed.