Array manipulation

[Sayed, Irfan \(Irfan\)]

Hi All,
 
I have one array say @test = (1,2,3,2,5). Now if you observe 2 is
repeating in this array on second position and fourth position.
 
My requirement is that if such value is repeating twice then i just want
to remove one value and keep other value.
 
So my array should look like @test = (1,2,3,5)
 
can anybody help in this regard...
 
Regards
Irfan.