(PHP 5, PECL oci8:1.1-1.2.4)
oci_field_is_null — Checks if the field is NULL
Checks if the given field from the statement is NULL.
A valid OCI statement identifier.
Can be a field's index or a field's name (uppercased).
Returns TRUE if field is NULL, FALSE otherwise.
Note: In PHP versions before 5.0.0 you must use ocicolumnisnull() instead. This name still can be used, it was left as alias of oci_field_is_null() for downwards compatability. This, however, is deprecated and not recommended.