#define z_is_true zend_is_true
#define smart_str_s(ss) (ss)->s
-#define smart_str_v(ss) (ss)->s->val
-#define smart_str_l(ss) (ss)->s->len
+#define smart_str_v(ss) (smart_str_s(ss)?(ss)->s->val:NULL)
+#define smart_str_l(ss) (smart_str_s(ss)?(ss)->s->len:0)
/* clear result object associated with a result handle */
-extern void php_pq_clear_res(PGresult *r);
+extern void php_pqres_clear(PGresult *r);
/* clear any asynchronous results */
-extern void php_pq_clear_conn(PGconn *conn);
+extern void php_pqconn_clear(PGconn *conn);
/* safe wrappers to clear any asynchronous wrappers before querying synchronously */
extern PGresult *php_pq_exec(PGconn *conn, const char *query);
extern PGresult *php_pq_exec_params(PGconn *conn, const char *command, int nParams, const Oid *paramTypes, const char *const * paramValues, const int *paramLengths, const int *paramFormats, int resultFormat);