php5-xdebug software package provides Xdebug Module 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-xdebug
php5-xdebug is installed in your system.
Make ensure the php5-xdebug package were installed using the commands given below,
$ sudo dpkg-query -l | grep php5-xdebug *
You will get with php5-xdebug package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Development |
| Package | php5-xdebug |
| Version | 2.2.3-2build1 |
| Description | Xdebug Module for PHP 5 |
| Sub Section | devel |