3. Module changes
========================
+- Pcre:
+ . php_pcre_replace and php_pcre_replace_impl expect a zend_string instead of a zval and
+ is_callable_replace options is removed:
+ - PHPAPI zend_string *php_pcre_replace(zend_string *regex, zend_string *subject_str, char *subject, int subject_len, zend_string *replace_str, int limit, int *replace_count);
+ - PHPAPI zend_string *php_pcre_replace_impl(pcre_cache_entry *pce, zend_string *subject_str, char *subject, int subject_len, zend_string *replace_str, int limit, int *replace_count);
+
- Session:
. php_session_start()/session_reset_id() return value is changed from void to int.
It returns SUCCESS/FAILURE.