Undefined Arrays inside for loop

[virtualweb]

Hello:

Im working on a Hotel Reservtion script and ran into a little problem:
I have 3 types of rooms, 1 is Single, 2 is Double, 3 is Suite
for this reason, $totaltypes = '3'; (in the snippet below).

I have a form with checkboxes in order to reserve rooms, all rooms that are checked are saved in the array @All_Rooms as detailed below:

 = ("1-101", "1-102","2-201", "2-202","3-301", "3-302");

1-101 means that room number 101 belongs to type 1 (being a single room).
2-201 means that room number 201 belongs to type 2 (being a double room).
and so forth.

Now I need to remove all room numbers from the array @All_Rooms and put them in separate arrays by room type. In other words all rooms beginning with 1- would go in one array, all rooms beginning with 2- would go on another, and so forth.

Except I never know how many room types will be, the script checks out this number by veryfying how many room type files have been created and assign it to the scalar $totaltypes.
I tryed the following code but it doesnt work... what am I doing wrong..??

for($b=1; $b<=$totaltypes; $b++)
{
foreach $room (@all_rooms){
@splitted_room = split (/\-/, $room);
if($splitted_room[0] == $b){
push(@Reserved_Rooms[$b], $splitted_room[1]);
}
}
}

Thanx beforehand
VirtualWeb

[KevinADC]

Your best option to me sounds like using a hash of arrays. The type is the hash key and all the room numbers of that type will be the value of the key, which is an array. Something like:

my %Rooms;
foreach my $room (@all_rooms){
   my ($t, $r) = split (/-/, $room);
   push @{$Rooms{$t}}, $r;
}
 

You then loop through the hash keys and the value of each hash key will have all the rooms associated with the type.

foreach my $type (keys %Rooms) {
   print "Room Type: $type\n";
   print "Rooms: ", join(' - ', @{$Rooms{$type}} , "\n\n";
}
 

[virtualweb]

Thank you.. I had never seen a hash of arrays... it worked

my %Rooms;
foreach my $room (@all_rooms){
   my ($t, $r) = split (/-/, $room);
   push @{$Rooms{$t}}, $r;
}