Visit PhantomJS site, go to download page and copy link address for Linux, in our case this is https://phantomjs.googlecode.com/files/phantomjs-1.9.2-linux-x86_64.tar.bz2
Then go to console and run following commands:
sudo apt-get install libfontconfig libfontconfig-dev libfreetype6-dev
^
wget https://phantomjs.googlecode.com/files/phantomjs-1.9.2-linux-x86_64.tar.bz2
^
sudo mv phantomjs-1.9.2-linux-x86_64.tar.bz2 /opt
^
cd /opt
^
tar -xvf phantomjs-1.9.2-linux-x86_64.tar.bz2
^
ln -s /opt/phantomjs-1.9.2-linux-x86_64/bin/phantomjs /usr/local/bin/phantomjs