PHP skip a version in its release and went directly from 5 to 7 but what a difference it makes in term of performances. PHP7 performances gain has been very impressive and it has been design to be retro compatible with code developed on PHP5. Here are the steps to do the upgrade on Ubuntu 14.04 LTS with a standard LAMP installation.
Upgrade to PHP7
First, update the apt sources.
Then, we install the python-software-properties package to manage additional repositories properly.
apt-get install python-software-properties
As PHP 7 is not yet available in the default repositories, we need to get it from a custom one. Use the following command:
Once the repository is added, apt needs to update again to add the new packages to its list.
Finally, we can proceed with the installation of php7 packages and lamp modules
apt-get install -y php7.0
apt-get install libapache2-mod-php7.0 php7.0-mysql php7.0-curl php7.0-json
To ensure proper connection to MySQL, we then enable the mysqli module in the new PHP and restart.
service apache2 restart
Your server is now running PHP7. Give us your feedback on how PHP7 improved your website performances and don’t forget to share this article with your friends.