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