From the NannyMUD documentation

LAST CHANGE

2000-12-14

FUNCTION

NAME
        sort_array - Sort an array through a specific sort function.


SYNTAX
	mixed *sort_array(mixed *array, string sortfunc, object sortob)

DESCRIPTION
	Sort array calls 'sortfunc' in 'sortob' with two elements from the
	'array' as args at a time and the function returns true if arg1 is
	bigger than arg2 to sort lower to higher in the resulting array
	and the other way around.


EXAMPLE
	int string_compare(string a, string b)
	{
	  // Looks just like comparing integers. LPC is great.
	  return a > b;
	} // string_compare


	int cmd_names()
	{
	   string *names;

	   // Get an unsorted list of names first.
	   names = users() -> query_real_name();

	   // Now sort it.
	   names = sort_array(names, "string_compare", this_object());

	   // Then print it.
	   write(implode_nicely(names, "or") + "?\n");

	   // Succesful execution - return 1.
	   return 1;
	} // show_names