Install PhantomJS on Ubuntu

cd /usr/local/share

sudo wget http://phantomjs.googlecode.com/files/phantomjs-1.9.2-linux-x86_64.tar.bz2

sudo tar xjf phantomjs-1.9.2-linux-x86_64.tar.bz2

sudo ln -s /usr/local/share/phantomjs-1.9.2-linux-x86_64/bin/phantomjs /usr/local/share/phantomjs

sudo ln -s /usr/local/share/phantomjs-1.9.2-linux-x86_64/bin/phantomjs /usr/local/bin/phantomjs

sudo ln -s /usr/local/share/phantomjs-1.9.2-linux-x86_64/bin/phantomjs /usr/bin/phantomjs

on this,

phantomjs -v

it will give
1.9.2