5.6.30+dfsg-0+deb8u1
) is not available, but a newer one is (5.6.33+dfsg-0+deb8u1
). We redirected you there.
/usr/share/doc/php5-phpdbg is in php5-phpdbg 5.6.33+dfsg-0+deb8u1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/php5-common