Popisbool ifx_close ( [resource link_identifier] )
ifx_close() closes the link to an Informix database that's associated with the specified link identifier.
Note that this isn't usually necessary, as non-persistent open links are automatically closed at the end of the script's execution.
ifx_close() will not close persistent links generated by ifx_pconnect().
The link identifier. If not specified, the last opened link is assumed.