How To Install php-symfony-polyfill-php55 on Ubuntu 18.04
Introduction
In this tutorial we learn how to install php-symfony-polyfill-php55 on Ubuntu 18.04.
What is php-symfony-polyfill-php55
php-symfony-polyfill-php55 is:
This component provides functions unavailable in releases prior to PHP 5.5:
- boolval
- json_last_error_msg
- array_column
- hash_pbkdf2
The password_* functions are not actually provided until the php-password-compat package becomes available.
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-php55 on Ubuntu 18.04. 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-symfony-polyfill-php55 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-php55 using apt-get by running the following command:
sudo apt-get -y install php-symfony-polyfill-php55
Install php-symfony-polyfill-php55 Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install php-symfony-polyfill-php55 using apt by running the following command:
sudo apt -y install php-symfony-polyfill-php55
Install php-symfony-polyfill-php55 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-symfony-polyfill-php55 using aptitude by running the following command:
sudo aptitude -y install php-symfony-polyfill-php55
How To Uninstall php-symfony-polyfill-php55 on Ubuntu 18.04
To uninstall only the php-symfony-polyfill-php55 package we can use the following command:
sudo apt-get remove php-symfony-polyfill-php55
Uninstall php-symfony-polyfill-php55 And Its Dependencies
To uninstall php-symfony-polyfill-php55 and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:
sudo apt-get -y autoremove php-symfony-polyfill-php55
Remove php-symfony-polyfill-php55 Configurations and Data
To remove php-symfony-polyfill-php55 configuration and data from Ubuntu 18.04 we can use the following command:
sudo apt-get -y purge php-symfony-polyfill-php55
Remove php-symfony-polyfill-php55 configuration, data, and all of its dependencies
We can use the following command to remove php-symfony-polyfill-php55 configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge php-symfony-polyfill-php55
References
Summary
In this tutorial we learn how to install php-symfony-polyfill-php55 package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.
