Description
bool 
oci_field_is_null ( resource stmt, mixed field )
     oci_field_is_null() returns TRUE if field 
     field from the statement is 
     NULL. Parameter field could be a field's index
     or a field's name (uppercased).
    
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.