(PHP 4 >= 4.0.2, PHP 5 <= 5.0.5, PECL ingres >= 1.0.0)
ingres_close — Close an Ingres 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.
Returns TRUE on success or FALSE on failure.