[RESOLVED] How to modify a $_POST['thispart']?

schwim

Hi there everyone!

I've got a loop that builds checkboxes for any images relating to a submission, so the checkboxes end up looking like this:

<input type="checkbox" name="image-PXA5034-78573-1.jpg" checked> Include Image<br>
<input type="checkbox" name="image-PXA5037-48927-2.jpg" checked> Include Image<br>
<input type="checkbox" name="image-PXA5027-23343-7.jpg" checked> Include Image<br>

And I need to check for ISSET on the processing end. The problem I'm having is that I can't figure out how to dynamically alter the $_POST element it's checking.

During the processing, I have the value of $pic and $pic is everything in the name of the checkbox except for 'image-'. So I need to figure out the following:

if $pic = PXA5034-78573-1.jpg

Then I need to have the following check:

if(ISSET($_POST['image-PXA5034-78573-1.jpg']))

but I've tried a lot of stuff and none of it's working. This was my last attempt:

if(ISSET($_POST['image-'.$pic])){

which didn't throw an error but also didn't operate as desired. Everything ran as if !ISSET.

Could someone set me straight on how I would handle this?

Thanks for your time!

schwim

Well, I finally got around to check the $POST array and found that it was changing the '.' into an ''. I did the following to get it working:

$pcheck = str_replace(".","_",$pic);
if(ISSET($_POST['image-'.$pcheck])){
	$ischecked = ' checked';
}else{
	$ischecked = '';
}

Which got it working but seems incredibly flawed. I'll play around and see if I can make it a bit more elegant.

Bonesnap

You may want to consider taking a different approach. The name attribute really isn't meant to be used like this. For a related group of checkboxes the name should be the same followed by [] to indicate it's an array. What you want to change is the value attribute with the appropriate image value. Then instead of checking if individual checkboxes are checked, you simply have an array of values to look through (in_array). You also have no character substitution. My initial guess is PHP made the substitution because the dot character is not allowed in variables but underscores are.

schwim

Thanks for your help Bonesnap, I did end up going with an array that I dissected in the loop. It allowed me to store a bit of extra information that I needed.

Thanks again!