Upload Problem with Empty File Name

CarrieS

I recently upgraded to PHP4.2.2 from an older version of PHP.

Then I realized that if I have an empty value in an upload file field, the value of the variable is no longer "none", it is now "".

Since I have a lot of codes using conditions like:

if ($file_name != "none"){

do something...

}

These codes are not working anymore.

I am just wondering if there is a quick fix for my problem instead of going through all the codes and using $_FILES.....

Appreciate any suggestion.

CarrieS

merkinmuffley

gawd how I love those undocumented feature changes. you could use $file_size as a sort of catch-all. if $file_size is zero, then either the user didn't upload any file, or the file they uploaded was empty; you might as well handle those 2 cases the same way.

CarrieS

Is there any quick fix in php.ini will do that?

merkinmuffley

I don't think there's any ini setting you can change to make it behave like it used to.

stevenrebello

what you can do is a simple workaround. when the file upload form in submitted, just make a check thru javascript and set the file_name to none if it is empty.

devarticles

yes, but not everyone has javascript enabled. It looks like your just gonna have to open your files, hit ctrl+f and find all the instances of 'none' and change them to ''

gutlass

if (strlen($file_name) != 0){

do something...

}

wait a minute... that would only work for the newer version.

because strlen($file_name) would give you a length if it was left empty in the older versions of php....

due to file_ etc.....

Extended Search and replace?

or

if (($file_name != "none") || ($file_name != "")) {

do something...

}