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- .. _reference.name-based-namespaces:
- =====================
- Predefined Namespaces
- =====================
- `RFC 4122`_ defines a handful of UUIDs to use with "for some potentially
- interesting name spaces."
- .. list-table::
- :widths: 30 70
- :align: center
- :header-rows: 1
- * - Constant
- - Description
- * - :php:const:`Uuid::NAMESPACE_DNS <Ramsey\\Uuid\\Uuid::NAMESPACE_DNS>`
- - The name string is a fully-qualified domain name.
- * - :php:const:`Uuid::NAMESPACE_URL <Ramsey\\Uuid\\Uuid::NAMESPACE_URL>`
- - The name string is a URL.
- * - :php:const:`Uuid::NAMESPACE_OID <Ramsey\\Uuid\\Uuid::NAMESPACE_OID>`
- - The name string is an `ISO object identifier (OID)`_.
- * - :php:const:`Uuid::NAMESPACE_X500 <Ramsey\\Uuid\\Uuid::NAMESPACE_X500>`
- - The name string is an `X.500`_ `DN`_ in `DER`_ or a text output format.
- .. _RFC 4122: https://tools.ietf.org/html/rfc4122
- .. _ISO object identifier (OID): http://www.oid-info.com
- .. _X.500: https://en.wikipedia.org/wiki/X.500
- .. _DN: https://en.wikipedia.org/wiki/Distinguished_Name
- .. _DER: https://www.itu.int/rec/T-REC-X.690/
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