I have an array:

```
Array
(
    [customer] => One
    [itemno] => Yellow Ribbon
    [price] => 1,2

)
Array
(
    [customer] => One
    [itemno] => Blue Band
    [price] => 0,5
)
Array
(
    [customer] => Two
    [itemno] => Red Tape
    [price] => 2,0
)

```

And I want to group it by customer like this:

```
Array
(
    [One] => Array (
        [itemno] => Yellow Ribbon
        [price] => 1,2
        ) 
        [itemno] => Blue Band
        [price] => 0,5
        )

    [Two] => Array (
        [itemno] => Red Tape
        [price] => 2,0
        )
 )

```

How can I accomplish this?