Duplicate value in array

[Fran]

Wonder if someone can help me with this please... my brain is in Friday-mode

I have an array that I want to check for duplicate values and then warn the user. Below is an example extract from my code:

$sArray = StringSplit("123,456,789,321,654,789,987", ",")
$cntSamples = $sArray[0]

;if <there is a duplicated value in the array> then
MsgBox(4096, "Error", "There are duplicate values in the array.") ;and echo the value

EDIT: I'm sorry for posting on this forum.. I didn't realise when I made the post. And now I don't know how to delete this and post on the general forum.

Edited September 10, 2010 by Fran

[water]

I would use something like this:

#include <array.au3>
$aArray = StringSplit("123,456,789,321,654,789,987", ",")
_ArrayDisplay($aArray)

; Only tells if there are differences
$aNewArray = _ArrayUnique($aArray, 1, 1)
_ArrayDisplay($aNewArray)
If $aArray[0] <> $aNewArray[0] Then MsgBox(4096, "Error", "There are duplicate values in the array.")

; Shows the duplicate values
_ArraySort($aArray, 0, 1)
_ArrayDisplay($aArray)
For $index = 1 To $aArray[0]-1
    If $aArray[$index] = $aArray[$index+1] Then MsgBox(4096, "Error", "Value '" & $aArray[$index] & "' is a duplicate value in the array")
Next

[Fran]

You are legend! Thank you