[RESOLVED] Check if an image field is set ??

[chrislead]

I have a form which uploads an image great....however how can I check that the image field is actually set in the first place.

In other words, how can I validate that the form hasn't been submitted with the img field empty?

I have tried things like:

if(!isset($_FILES['image'])){

and....

if(!isset($_FILES['image'][tmp_name)){

...but no luck

Any ideas would be more than appreciated

Cheeers.

[laserlight]

Perhaps [man]empty[/man] would be better?

[chrislead]

Cheers for your reply,

If you mean something like

if ($_POST['image'] == ""){

then unforts that doesn't work. That was my initial thought too and it is something to do with the image field eventually being empty when u submit the form anyway.

Never the less I found a solution, I used:

if ($_FILES['image']['name']){ // if the image is set then....

}else{ // image is not set....

}

Cheers anyway.

[laserlight]

No, what I mean is this:

if (!empty($_FILES['image'])) {
    // use image
}

The slight problem with isset in this case is that sending no image will still result in the incoming variable being set, but with a blank value. Using empty instead checks that the field has actually been filled out.

Directly using the image name will work in the sense that the blank value is convertible to false, but then if you have error_reporting set to E_ALL you will have a notice about usage of a nonexistent variable on the first page load. Basically, you should always check incoming variables with either isset or empty before using them.

[bradgrafelman]

You could take it a step further and do:

if(isset($_FILES['image']) && $_FILES['image']['error'] == UPLOAD_ERR_OK) {
// blah
}