(PHP 4 >= 4.0.2, PHP 5 <= 5.0.5, PECL ingres:1.0-1.4.3)
ingres_close — Close an Ingres II database connection
ingres_close() closes the connection to the Ingres server that's associated with the specified link.
ingres_close() isn't usually necessary, as it won't close persistent connections and all non-persistent connections are automatically closed at the end of the script.
The connection link identifier. If not specified, the last opened link is used.
성공할 경우 TRUE를, 실패할 경우 FALSE를 반환합니다.