Commit 4c9bbaa79d7 for php.net

commit 4c9bbaa79d7b6868bc39a9a2f841c6df91fc45ec
Merge: 971728fe109 de1465e5ae0
Author: Niels Dossche <7771979+ndossche@users.noreply.github.com>
Date:   Fri Jan 2 18:03:41 2026 +0100

    Merge branch 'PHP-8.5'

    * PHP-8.5:
      streams/memory: Ensure internal string is NUL terminated (#20812)