+function array_replace(&$array, $index, $len, $elements)
+{
+ array_splice($array, $index, $len);
+ array_insert($array, $index, $elements);
+}
+
+function array_append(&$array, $elements)
+{
+ foreach($elements as $key => $el) {
+ if(is_int($key))
+ $array[] = $el;
+ else
+ $array[$key] = $el;
+ }
+}
+