/usr/share/php/ is in php-horde-oauth 2.0.3-5.
This file is owned by root:root, with mode 0o755.
..
/usr/share/php/Horde/
/usr/share/php/Horde/Oauth/
/usr/share/php/.registry/
/usr/share/php/.registry/.channel.pear.horde.org/
/usr/share/php/.registry/.channel.pear.horde.org/horde_oauth.reg
/usr/share/php/Horde/Oauth/Consumer.php
/usr/share/php/Horde/Oauth/Exception.php
/usr/share/php/Horde/Oauth/Request.php
/usr/share/php/Horde/Oauth/SignatureMethod/
/usr/share/php/Horde/Oauth/SignatureMethod/HmacSha1.php
/usr/share/php/Horde/Oauth/SignatureMethod/Plaintext.php
/usr/share/php/Horde/Oauth/SignatureMethod/RsaSha1.php
/usr/share/php/Horde/Oauth/SignatureMethod.php
/usr/share/php/Horde/Oauth/Token.php
/usr/share/php/Horde/Oauth/Utils.php