How to upgrade PHP to v5.5 in Ubuntu 12.04

  • Posted September 22, 2013

I saw that Zend Opcode is now baked into PHP 5.5 so am keen to apgrade my Virtualmin / LAMP install.

Is this relatively easy and how do I go about it (remembering I’m a greenhorn to command line Linux / VPS)

Thanks for helping.


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I was able to update to PHP 5.5 following the instructions on But by upgrading to Apache 2.4, the config file got overwritten. And I didn’t know what to change to keep it working.

Luckily, I took a Snapshot before upgrading and then I restored from Snapshot. So everything’s back to normal now.

I followed the instructions at and the only hiccup I found was that by default PHP was disabled in user home directories, where my document root happened to be. Commenting out that block in /etc/apache2/mods-available/php5.conf fixed it for me.

I don’t think you can install a Debian Wheezy/Squeeze/etc repo on Ubuntu, however the guy that maintains also maintains an Ubuntu PPA with the same packages: <br> <br>ppa:ondrej/php5:

Use the dotdeb repository which includes PHP 5.5 <br> <br>

@martin, <br> <br>Why not: <br> <br>1.) take a snapshot of your droplet; <br>2.) spin up a new droplet from that snapshot; <br>3.) try upgrading to PHP v5.5; <br>4.) if all goes well, follow the same steps on your original droplet; then <br>5.) destroy the newer droplet?

As a newbie, I think I’ll pass. It looks decidely un-official and if I get stuck or confused, I don’t have enough experience to get myself out of trouble :) <br>Thanks anyway Kamal

Take a look at this post: <a href=“”></a> <br> <br>Give it a shot and let me know how it goes.