I have the following multi-dimensional array (this is only an extract) and would like to dynamically create a set of one-dimensional arrays and add values.

What I have:

```
0 => 
     0 => Image
     1 => DE
     2 => Hamburg-S02-I01
     3 => 54
     4 => Button
1 => 
     0 => Image
     1 => GB
     2 => London-S01-I01
     3 => 51
     4 => Button
2 => 
     0 => Image
     1 => GB
     2 => London-S01-I04
     3 => 60
     4 => Button
3 => 
     0 => Image
     1 => DE
     2 => Berlin-S02-I01
     3 => 57
     4 => Button
4 => 
     0 => Image
     1 => DE
     2 => Hamburg-S02-I01
     3 => 52
     4 => Button

```

What I need:

```
$Hamburg = array('Hamburg-S02-I01', 'Hamburg-S02-I01');
$London= array('London-S01-I01', 'London-S01-I04');
$Berlin= array('Berlin-S02-I01');

```

I appreciate your help! Thanks!