NAME
	filter_array - filter an array through a function

SYNTAX
	mixed *filter_array(mixed *arr,function fun,mixed arg, ...);
	mixed *filter_array(object *arr,string fun,mixed arg, ...);
	mixed *filter_array(function *arr,-1,mixed arg, ...);

DESCRIPTION
	First syntax:
	Filter array returns an array holding the items of arr for which
	fun returns true.

	Second syntax:
	Filter array calls fun in all the objects in the array arr, and
	return all objects that returned true.

	Third syntax:
	Filter array calls all functionpointers in the array arr, and
	return all that returned true.

SEE ALSO
	sum_arrays, map_mapping, map_array, filter_mapping, sum_mappings