date_period_write_property  645 ext/date/php_date.c static void date_period_write_property(zval *object, zval *member, zval *value, const zend_literal *key TSRMLS_DC);
date_period_write_property 2105 ext/date/php_date.c 	date_object_handlers_period.write_property = date_period_write_property;