Sorting array

[halex]

void uasort (array array, function cmp_function)

The comparison function is user-defined.

Question:
How do I make "cmp_function"? Are there some rules? I'm using Cp1250 character set and want to sort my data using rules for that character set. MySQL didn't sort correctly LASTNAMES - we have 6 special letters in our language and order is:

I NEED THIS:
a
b
c
special char1
special char2
d
e
...

MySQL SORT LIKE THIS:
special char1
special char2
a
b
c
d
e
...

How I can perform sort in order to be suitable for my language?

Thanks

[Weedpacket]

For how a comparison function works, see the documentation covering the usort() function (second paragraph).

[halex]

Right.

It is written:

Note: Please see usort() and uksort() for examples of user-defined comparison functions