PHP requires integer typehints to be written "int" and does not
allow "integer" as an alias. This changes type error messages to
match the actual type name and avoids confusing messages like
"must be of the type integer, integer given".
- Removed the undocumented object support in the leftover array functions [DOC]
(natcasesort, natsort, array_walk, array_walk_recursive, array_unique, array_key_exists)
- Changed HASH_OF() to Z_ARRVAL_P()
- Fixed bug #45937 (array_walk and array_walk_recursive can alter private/protected object variable)
