This repository provides unofficial packages of PhantomJS 1.9.7 (and only this precise version) for Fedora and CentOS.
Built packages are available at:
https://copr.fedorainfracloud.org/coprs/adrienverge/phantomjs-1.9.7/
On Fedora or CentOS:
sudo dnf copr enable adrienverge/phantomjs-1.9.7
sudo dnf install phantomjs-1.9.7