How To Install php-symfony-polyfill-php73 on Kali Linux

In this tutorial we learn how to install php-symfony-polyfill-php73 on Kali Linux. php-symfony-polyfill-php73 is Symfony polyfill backporting some PHP 7.3+ features to lower PHP versions

Introduction

In this tutorial we learn how to install php-symfony-polyfill-php73 on Kali Linux.

What is php-symfony-polyfill-php73

php-symfony-polyfill-php73 is:

This component provides functions unavailable in releases prior to PHP 7.3:

  • array_key_first
  • array_key_last
  • hrtime
  • is_countable
  • JsonException

The Symfony Polyfill project backports features found in the latest PHP versions and provides compatibility layers for some extensions and functions. It is intended to be used when portability across PHP versions and extensions is desired.

Symfony is a PHP framework, a set of tools and a development methodology.

There are three methods to install php-symfony-polyfill-php73 on Kali Linux. 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-symfony-polyfill-php73 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-symfony-polyfill-php73 using apt-get by running the following command:

sudo apt-get -y install php-symfony-polyfill-php73

Install php-symfony-polyfill-php73 Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install php-symfony-polyfill-php73 using apt by running the following command:

sudo apt -y install php-symfony-polyfill-php73

Install php-symfony-polyfill-php73 Using aptitude

If you want to follow this method, you might need to install aptitude on Kali Linux first since aptitude is usually not installed by default on Kali Linux. Update apt database with aptitude using the following command.

sudo aptitude update

After updating apt database, We can install php-symfony-polyfill-php73 using aptitude by running the following command:

sudo aptitude -y install php-symfony-polyfill-php73

How To Uninstall php-symfony-polyfill-php73 on Kali Linux

To uninstall only the php-symfony-polyfill-php73 package we can use the following command:

sudo apt-get remove php-symfony-polyfill-php73

Uninstall php-symfony-polyfill-php73 And Its Dependencies

To uninstall php-symfony-polyfill-php73 and its dependencies that are no longer needed by Kali Linux, we can use the command below:

sudo apt-get -y autoremove php-symfony-polyfill-php73

Remove php-symfony-polyfill-php73 Configurations and Data

To remove php-symfony-polyfill-php73 configuration and data from Kali Linux we can use the following command:

sudo apt-get -y purge php-symfony-polyfill-php73

Remove php-symfony-polyfill-php73 configuration, data, and all of its dependencies

We can use the following command to remove php-symfony-polyfill-php73 configurations, data and all of its dependencies, we can use the following command:

sudo apt-get -y autoremove --purge php-symfony-polyfill-php73

Dependencies

php-symfony-polyfill-php73 have the following dependencies:

References

Summary

In this tutorial we learn how to install php-symfony-polyfill-php73 package on Kali Linux using different package management tools: apt, apt-get and aptitude.