Question

How do I know which PHP version I'm using and how to update it?

  • Posted January 22, 2015

Hello, I’m very very new to web development and computing world and I’ve got a very basic question. I need to create a web app which supports login with Facebook. In order to do that, I need to use php. Although, Facebook api need php5.4+ How do I know which version of php is supported from my server? Besides, If it’s not 5.4+ how do I update it?

Thanks a lot for your support.

Greets,

Giacomo

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Almost all recent Linux distros come with PHP 5.4+. You can first check which version of PHP the distro uses before you create the droplet from here: http://distrowatch.com/ Also you can check after you create the droplet and install PHP with the command php -v.


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Here’s a quick cheat sheet that shows the base versions of PHP offered in some major distros:

Distro PHP Version
Ubuntu 12.04 5.3.10
Ubuntu 14.04 5.5.9
Ubuntu 16.04 7.0
CentOS 6 5.3.3
CentOS 7 5.4.16
Debian 7 5.4.45
Debian 8 5.6.20

If you need a more recent version, there are a number of third party repositories that offer them. For instance, these articles will walk you through upgrading to PHP 7 on Ubuntu 14.04 and CentOS 7:

RE: “How do I know which PHP version I’m using?”

When logged in to the server

php -v

will show you the PHP version information