Install rtorrent-cleaner for php 7.1.3 and above
wget https://github.com/Magicalex/rtorrent-cleaner/releases/download/0.6.2/rtorrent-cleaner-php7.phar
mv -f rtorrent-cleaner-php7.phar /usr/local/bin/rtorrent-cleaner
chmod +x /usr/local/bin/rtorrent-cleaner
Install rtorrent-cleaner for php 5.6 and above
wget https://github.com/Magicalex/rtorrent-cleaner/releases/download/0.6.2/rtorrent-cleaner-php5.phar
mv -f rtorrent-cleaner-php5.phar /usr/local/bin/rtorrent-cleaner
chmod +x /usr/local/bin/rtorrent-cleaner