Hi,

I have a set of data as below
$VAR1 = 'A,B';
$VAR2 = 'C,D';
$VAR3 = 'C,K';
$VAR4 = 'K,P';

How to group the above data into
A,B
C,D,K,P

I have no idea. Please guide. Thanks

Before you write the code, you need to know what you mean by "similar" ... you may already know, but I can only guess.   If you can describe that to me / us, we mey be able to help


Sorry about that.
i change the ',' to  '='
$VAR1 = 'A=B';
$VAR2 = 'C=D';
$VAR3 = 'C=K';
$VAR4 = 'K=P';

meaning i wish to group all the same item into one group as below:
group1 = A,B
group2 =C,D,K,P

Why are they "the same item"? You need to explain in detail why they belong in one group or another group.

---