Returns a field's data type name.
A valid OCI statement identifier.
Can be the field's index (1-based) or name.
Returns the field data type as a string or an int, or false on failure
In PHP versions before 5.0.0 you must use ocicolumntype instead. This name still can be used, it was left as alias of oci_field_type for downwards compatability. This, however, is deprecated and not recommended.