Array Question

[wood]

I am using an array to set values for a select lists in HTML. I have 10 select lists that are being passed the array called "@subtotaloptions_avail" or "@subtotaloptions_sel" with a 1-10 at the end of the array.

I am looping through available options and adding them to the array, however, I want to change the name of the array within the loop.

Here is an example of what I want to do, but it is giving me errors.

Could you please help by telling me how to change the name of the array within the loop?

Thanks!

my $z=2;
for ($z <= 10){
# Set up the selected options for the custom fields.
    foreach my $selection (@selections2) {
	if ($listv[$i] eq $selection) {
    	    $found = 1;
	}	
    }
    if ($found ne 1) {
	push(@subtotaloptions_avail$z, "$listk[$i]:$listv[$i]" );
    } else {
	push(@subtotaloptions_sel$z, "$listk[$i]:$listv[$i]" );
    }
    $found = 0;
    $z++
}

I know that the problem is with these lines of code:
@subtotaloptions_avail$z
and
@subtotaloptions_sel$z

what I want is:
@subtotaloptions_sel2
@subtotaloptions_sel3
@subtotaloptions_sel4
etc.

 

[ishnid]

What you're looking for is a soft (or "symbolic") reference. They're a horrible idea: an idea that I've manage to pulverise into most forum-regulars' heads by now Have a read of this to see an explanation of why they're not a very good idea.

For this, you're far, far, far, far (you get the picture) better using a 2-d array:

push( @{ $subtotaloptions_sel[ $z ] }, "$listk[$i]:$listv[$i]" );

 

[wood]

Actually the code you gave me does not work. It puts a value of ARRAY(0x90559f38) in one of the list boxes.

How would I use a 2-d array here?

 

[KevinADC]

Use a hash instead of trying to rename arrays:

my $z=2;
for ($z <= 10){
# Set up the selected options for the custom fields.
    foreach my $selection (@selections2) {
    if ($listv[$i] eq $selection) {
            $found = 1;
    }    
    }
    if ($found ne 1) {
    [b]$subtotaloptions_avail{$z}[/b] = "$listk[$i]:$listv[$i]" );
    } else {
    [b]$subtotaloptions_sel{$z}[/b] = "$listk[$i]:$listv[$i]" );
    }
    $found = 0;
    $z++
}

The original order of the data might be lost using a hash.

Or use a 2D array like ishnid suggests. The 2D array can maintain order and give you the desired output.

 

[ishnid]

Actually the code you gave me does not work. It puts a value of ARRAY(0x90559f38) in one of the list boxes.

That's the reference to the second dimension of your array. Google for "perllol" - that'll explain multidimensional data structures far better than I could.