Q:

PHP explode group_concat

How  can i explode [group_concat(DISTINCT LineItem.ItemID)] => 600278,WH1502.
I tried this but displays nothing
$result = mysqli_query($con,"SELECT ...")

while($row = mysqli_fetch_array($result)) { 
$r = $row[LineItem.ItemID];
 explode(',',$r);
}

Also tried 
$result = mysqli_query($con,"SELECT ...")

while($row = mysqli_fetch_array($result)) {
   $r = $row[group_concat(DISTINCT LineItem.ItemID)];
   explode(',',$r);
 }

//ARRAY
  Array ( 
        [0] => XXOR001# 
        [CustomerID] => XXOR001# 
        [1] => XXXX INDUSTRIES 
        [Customer_Bill_Name] => XXX INDUSTRIES 
        [2] => WILL CALL [WhichShipVia] => WILL CALL [3] => 
        [INV_POSOOrderNumber] => [4] => 2014-12-05 
        [ShipByDate] => 2014-12-05 [5] => 
        [GoodThruDate] => [6] => 
        [CustomerSONo] => [7] => 15001 
        [Reference] => 15001 [8] => 2014-11-17 
        [TransactionDate] => 2014-11-17 [9] => 1 
        [DistNumber] => 1 
        [10] => 30.0000000000000000000 
        [Quantity] => 30.0000000000000000000 
        [11] => 600278,WH1502 
        [group_concat(DISTINCT LineItem.ItemID)] => 600278,WH1502 
        [12] => ASSY400/60-15.5/14 TRCIMP 15.5X13 8-8 FLAT, BW (TW4155-2)  
        [SalesDescription] => ASSY400/60-15.5/14 TRCIMP 15.5X13 8-8 FLAT, BW (TW4155-2)
        [13] => TW4155-2 
        [PartNumber] => TW4155-2 [14] => ASSY400/60-15.5/14W/WHL15.5X13 
        [ItemDescription] => ASSY400/60-15.5/14W/WHL15.5X13 ) 

A:

I'm not sure what you are trying to do, but you could try something like this to help provide some visibility to your code:
while($row = mysqli_fetch_array($result)) { 
    $r = $row[LineItem.ItemID];
    $lineItemArray = explode(',',$r);
    print_r($lineItemArray);
}

explode() creates an array from a string based on the assigned separator. Consider this example:
$r = '600278,WH1502';
$rarray = explode(',',$r);
print_r($rarray);

//Output:
Array
(
    [0] => 600278
    [1] => WH1502
)

See demo

