I am following this tutorial on upgrading php from ver 5.3 to 5.6 :http://phpave.com/upgrade-php-53-to-php-56-on-ubuntu-1204-lts/
sudo add-apt-repository ppa:ondrej/php5-5.6
sudo apt-get update && sudo apt-get dist-upgrade
The problem is that apache is also upgraded. Is it possible to update only php without upgrading apache server ?