oci_close() closes the Oracle connection
connection.
Note:
Starting from the version 1.1 oci_close() correctly
closes the Oracle connection.
Use oci8.old_oci_close_semantics
option to restore old behaviour of this function.
Returns TRUE on success or FALSE on failure.
Note:
In PHP versions before 5.0.0 you must use ocilogoff() instead.
This name still can be used, it was left as alias of
oci_close() for downwards compatability.
This, however, is deprecated and not recommended.
