How To Install php-constant-time on Ubuntu 20.04
Introduction
In this tutorial we learn how to install php-constant-time on Ubuntu 20.04.
What is php-constant-time
php-constant-time is:
This library aims to offer character encoding functions that do not leak information about what you are encoding/decoding via processor cache misses.
There are three methods to install php-constant-time on Ubuntu 20.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install php-constant-time Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install php-constant-time using apt-get by running the following command:
sudo apt-get -y install php-constant-time
Install php-constant-time Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install php-constant-time using apt by running the following command:
sudo apt -y install php-constant-time
Install php-constant-time Using aptitude
If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Ubuntu. Update apt database with aptitude using the following command.
sudo aptitude update
After updating apt database, We can install php-constant-time using aptitude by running the following command:
sudo aptitude -y install php-constant-time
How To Uninstall php-constant-time on Ubuntu 20.04
To uninstall only the php-constant-time package we can use the following command:
sudo apt-get remove php-constant-time
Uninstall php-constant-time And Its Dependencies
To uninstall php-constant-time and its dependencies that are no longer needed by Ubuntu 20.04, we can use the command below:
sudo apt-get -y autoremove php-constant-time
Remove php-constant-time Configurations and Data
To remove php-constant-time configuration and data from Ubuntu 20.04 we can use the following command:
sudo apt-get -y purge php-constant-time
Remove php-constant-time configuration, data, and all of its dependencies
We can use the following command to remove php-constant-time configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge php-constant-time
References
Summary
In this tutorial we learn how to install php-constant-time package on Ubuntu 20.04 using different package management tools: apt, apt-get and aptitude.
