Resolved Why cant i check for $_FILES without element

[durangod]

Hi i been fighting this deal to figure out why its not posting with no file upload and i just found that if i do

This works fine

PHP Code:

if($_FILES['value']['name'] == "") 


these do not

PHP Code:

if(!$_FILES)
if(!$_FILES['value']) 


Im curious why i have to include the name element to get it to work, is that normal?
Just fyi im checking if no file upload then do a dif process.

Thanks


update is it that if you have it turned on then $_FILES always exists no matter what its just the name that is blank?

[Fou-Lu]

Not sure what you mean by "turned on", but $_FILES will always exist so long as you have an input type of file (and have a enc type of multipart/form-data of course).

By providing it with no file, than you can still find an offset in $_FILES under your input name. Since the very first thing you should do with the upload is determine if it was successful, you can check the $_FILES['value']['error']. Failing to fill select a file will result in an error code of UPLOAD_ERR_NO_FILE (the integer value of 4).
So to check no file in particular, you would use:

PHP Code:

if ($_FILES['value']['error'] == UPLOAD_ERR_NO_FILE) 


The only valid upload to allow you to continue is an error value of UPLOAD_ERR_OK or the integer 0.

You can find all the error codes for uploads here: http://php.ca/manual/en/features.file-upload.errors.php

[durangod]

Thanks sorry, yeah by turned on i meant having this in my form - multipart/form-data

learn something new every day, i never knew it was there regardless, makes me think i should go back and check some of my older coding now.... it never ends lmao hee hee