- phpc_convert_to_string_ex -> phpc_convert_to_string
- P, S (is it needed?)
- Z is not supported
- wrap util functions
- zend_hash_merge
- zend_hash_sort
- zend_hash_compare
- zend_hash_minmax
- add apply functions
- zend_hash_apply
- zend_hash_apply_with_argument
- zend_hash_apply_with_arguments
- add possibility to duplicate key
- zend_hash_get_current_key_ex
- Address all differences in the DIFF list