date_object_get_gc_period  637 ext/date/php_date.c static HashTable *date_object_get_gc_period(zval *object, zval ***table, int *n TSRMLS_DC);
date_object_get_gc_period 2103 ext/date/php_date.c 	date_object_handlers_period.get_gc = date_object_get_gc_period;