php-html-safe software package provides strip down all potentially dangerous content within HTML, 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 php-html-safe
php-html-safe is installed in your system.
Make ensure the php-html-safe package were installed using the commands given below,
$ sudo dpkg-query -l | grep php-html-safe *
You will get with php-html-safe package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Web Software |
| Package | php-html-safe |
| Version | 0.10.1-3 |
| Description | strip down all potentially dangerous content within HTML |
| Sub Section | Web |