php5-memcache software package provides memcache extension module for PHP5, 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-memcache
php5-memcache is installed in your system.
Make ensure the php5-memcache package were installed using the commands given below,
$ sudo dpkg-query -l | grep php5-memcache *
You will get with php5-memcache package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Web Software |
| Package | php5-memcache |
| Version | 3.0.8-4build1 |
| Description | memcache extension module for PHP5 |
| Sub Section | Web |