php5-apcu software package provides APC User Cache for PHP 5, you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install php5-apcu
php5-apcu is installed in your system.
Make ensure the php5-apcu package were installed using the commands given below,
$ sudo dpkg-query -l | grep php5-apcu *
You will get with php5-apcu package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | PHP |
| Package | php5-apcu |
| Version | 4.0.2-2build1 |
| Description | APC User Cache for PHP 5 |
| Sub Section | PHP |