[Sync EN] Synchronize list of predefined constants with stubs - part 6 (#2771)

[github-actions]

Commit: https://github.com/php/doc-en/commit/ae7cad1a619ee10386a11fbc99d46b88376adca3
PR: https://github.com/php/doc-en/pull/2771

Fichiers FR à mettre à jour

• reference/oci8/constants.xml