Returns Oracle's raw data type of the field.
However, if you want to get field's type, then
oci_field_type() will suit you better.
A valid OCI statement identifier.
Can be the field's index (1-based) or name.
Returns Oracle's raw data type as a string, or
FALSE on errors.
In PHP versions before 5.0.0 you must use ocicolumntyperaw() instead.
This name still can be used, it was left as alias of
oci_field_type_raw() for downwards compatability.
This, however, is deprecated and not recommended.