(PHP 4 >= 4.0.2, PHP 5 < 5.1.0, PECL ingres >= 1.0.0)
ingres_close — Close an Ingres database connection
$link
) : boolingres_close() closes the connection to the Ingres server that is associated with the specified link.
ingres_close() is usually unnecessary, as it will not close persistent connections and all non-persistent connections are automatically closed at the end of the script.
linkThe connection link identifier
�ɹ�ʱ���� TRUE�� ������ʧ��ʱ���� FALSE��