How To Install php-phpseclib on Ubuntu 20.04

In this tutorial we learn how to install php-phpseclib on Ubuntu 20.04. php-phpseclib is implementations of an arbitrary-precision integer arithmetic library

Introduction

In this tutorial we learn how to install php-phpseclib on Ubuntu 20.04.

What is php-phpseclib

php-phpseclib is:

The PHP Secure Communications Library are fully PKCS#1 (v2.1) compliant RSA, DES, 3DES, RC4, Rijndael, AES, Blowfish, Twofish, SSH-1, SSH-2, SFTP, and X.509 implementations.

There are three methods to install php-phpseclib 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-phpseclib 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-phpseclib using apt-get by running the following command:

sudo apt-get -y install php-phpseclib

Install php-phpseclib Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install php-phpseclib using apt by running the following command:

sudo apt -y install php-phpseclib

Install php-phpseclib 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-phpseclib using aptitude by running the following command:

sudo aptitude -y install php-phpseclib

How To Uninstall php-phpseclib on Ubuntu 20.04

To uninstall only the php-phpseclib package we can use the following command:

sudo apt-get remove php-phpseclib

Uninstall php-phpseclib And Its Dependencies

To uninstall php-phpseclib and its dependencies that are no longer needed by Ubuntu 20.04, we can use the command below:

sudo apt-get -y autoremove php-phpseclib

Remove php-phpseclib Configurations and Data

To remove php-phpseclib configuration and data from Ubuntu 20.04 we can use the following command:

sudo apt-get -y purge php-phpseclib

Remove php-phpseclib configuration, data, and all of its dependencies

We can use the following command to remove php-phpseclib configurations, data and all of its dependencies, we can use the following command:

sudo apt-get -y autoremove --purge php-phpseclib

References

Summary

In this tutorial we learn how to install php-phpseclib package on Ubuntu 20.04 using different package management tools: apt, apt-get and aptitude.