I have a problem with sorting of arrays in PHP.
I tried all the sort functions in PHP but no one of them can sort only parts of a array.
 How can i only sort a part of an array in PHP?

As an sample, i have a array like this:

```
$letter = array("n", "a", "s", "c", "b", "m", "z", "o")

```

Now i whant only sort from the element 2 until the element 6 of my array.

This means, in the result, the array must be sortet like this:
n, a, b, c, m, s, z, o.

I hope you can help me.

Thanks, 
Nico