oci_cancel() invalidates a cursor, freeing all associated resources and cancels the ability to read from it.
Επιστρέφει TRUE σε επιτυχία ή FALSE σε αποτυχία.
In PHP versions before 5.0.0 you must use ocicancel() instead. This name still can be used, it was left as alias of oci_cancel() for downwards compatability. This, however, is deprecated and not recommended.