Foreach on checkboxes does not return values

Question

I made a script before, that worked completely fine in PHP 5.2. But when recently going over to my friends server (version PHP 4.4.9), I noticed some actions didn't work the way they should. The outcome of what the checkboxes returned came out crazy...

This is the code I'm using: For the form:

<input type="checkbox" value="Box1" name="BoxGroup[]" />Box1
<input type="checkbox" value="Box2" name="BoxGroup[]" />Box2
<input type="checkbox" value="Box3" name="BoxGroup[]" />Box3

For the action script:

if($_POST['BoxGroup'] == true){ // If one of the checkboxes were checked...
    foreach($_POST['BoxGroup'] as $value){
    $BoxGroup .= ", ".$value; // Make the array into a string
    }
    $BoxGroup = substr($BoxGroup,2); // To skip ", " from the beginning of the $BoxGroup variable
}

Now, what this script does, is; when a user sends the form, it checks if one of the checkboxes were checked, and if so, it will make a string, like so: "value, value" etc. I insert these values to my database. When I preview what's been submitted to the database on a page, I get "ray / value / value", -- so only "ray" (as in "Array") was passed for the first box it seems.

Unfortunately, I can not update the server's version of PHP, since both the system operator and I, don't have the root password to it (I know it's crazy).

So what do I do?

Answer 1

implode(', ', array_keys($_POST['BoxGroup']))