/usr/share/php/ is in php-horde-pack 1.0.7-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/php/.registry/
/usr/share/php/.registry/.channel.pear.horde.org/
/usr/share/php/.registry/.channel.pear.horde.org/horde_pack.reg
/usr/share/php/Horde/
/usr/share/php/Horde/Pack/
/usr/share/php/Horde/Pack/Autodetermine.php
/usr/share/php/Horde/Pack/Driver/
/usr/share/php/Horde/Pack/Driver/Igbinary.php
/usr/share/php/Horde/Pack/Driver/Json.php
/usr/share/php/Horde/Pack/Driver/Msgpack.php
/usr/share/php/Horde/Pack/Driver/Msgpackserialize.php
/usr/share/php/Horde/Pack/Driver/Serialize.php
/usr/share/php/Horde/Pack/Driver.php
/usr/share/php/Horde/Pack/Exception.php
/usr/share/php/Horde/Pack.php