PHP is a programming language used for developing website applications. You must install PHP packages on a Ubuntu system khổng lồ run the application written on it. Generally, it is used to create e-commerce websites, blogs, and API applications.
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We will use the Ondrej PPA for installing PHP on Ubuntu 22.04 LTS system. Which contains PHP 8.1, 8.0, 7.4, 7.3, 7.2. 7.1, 7.0 & PHP 5.6 packages. You can install any of them version as required for your application. The new application developers are suggested lớn use latest PHP version ie PHP 8.1.
In this tutorial, you will learn how to lớn install PHP on Ubuntu 22.04 LTS system. This tutorial is also compatible with Ubuntu 20.04, và 18.04 systems.
Before We Begin
First, login khổng lồ the Ubuntu 22.04 via console. Then update the Apt cache và upgrade the current packages of system using the following command:
sudo apt update && sudo apt tăng cấp When prompted, press ‘y’ khổng lồ confirm the installation.
Installing PHP on Ubuntu 22.04
PHP installation on Ubuntu systems is pretty straightforward. You just need to showroom the required PPA and you can install any PHP version on the Ubuntu system.
Follow these steps to complete PHP installation on Ubuntu:
Install few dependencies required by this tutorial with the below-mentioned command:sudo apt install software-properties-common ca-certificates lsb-release apt-transport-https địa chỉ cửa hàng the Ondrej PPA to your system, which contains all versions of PHP packages for the Ubuntu systems.LC_ALL=C.UTF-8 add-apt-repository ppa:ondrej/php Now, update the Apt package manager cache.sudo apt update The SURY repository contains PHP 8.1, 8.0, 7.4, 7.3, 7.2. 7.1, 7.0 & PHP 5.6. As the latest stable version of PHP is 8.0, but a large number of websites still required PHP 7. You can install any of the required PHP versions on your system.
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Install PHP 8.1: sudo apt install php8.1 Install PHP 7.4: sudo apt install php7.4 Install PHP 5.6 (EOL): sudo apt install php5.6 Replace version 8.1, 7.4, or 5.6 with the required PHP version khổng lồ install on Ubuntu. Even you can install multiple PHP versions on a single Ubuntu system.Some applications required other PHP extensions, that can also be added using below-mentioned syntax:sudo apt install php8.1-sudo apt install php8.1-mysql php8.1-mbstring php8.1-xml php8.1-curl Users have installed different PHP version, need to replace 8.1 with required PHP versions.
Check Active PHP Version
Now after installation verify that the correct version of PHP is installed by checking the version number by the below-mentioned command:php -v
About PHP Configuration Files
Configuration files are stored under a directory with version number under /etc/php directory. For example PHP 8.1 configuration files located as below:Main PHP configuration tệp tin location:PHP CLI: /etc/php/8.1/cli/php.ini Apache: /etc/php/8.1/apache2/php.ini PHP FPM: /etc/php/8.1/fpm/php.ini All the installed PHP modules are stored under /etc/php/8.1/mods-available directory. PHP Active modules configuration directory location:PHP CLI: /etc/php/8.1/cli/conf.d/ Apache: /etc/php/8.1/apache2/conf.d/ PHP FPM: /etc/php/8.1/fpm/conf.d/To kiểm tra files for the other PHP versions, just change the PHP version number (8.1 in the above example) in the files and directory path.
Switch default PHP Version for CLI
You can use update-alternatives command lớn set the default PHP version. Use this tutorial to lớn read more details about switching PHP version for CLI & Apache.
sudo update-alternatives --config phpThere are 4 choices for the alternative php (providing /usr/bin/php). Selection Path Priority Status------------------------------------------------------------* 0 /usr/bin/php8.1 81 tự động hóa mode 1 /usr/bin/php5.6 56 manual mode 2 /usr/bin/php7.4 74 manual mode 3 /usr/bin/php8.0 80 manual mode 4 /usr/bin/php8.1 81 manual modePress lớn keep the current choice<*>, or type selection number: 2The above output shows all the installed PHP versions on your system. Selection number 2 set PHP 7.4 as the mặc định PHP version for the command line.
Uninstalling PHP
If any PHP version is no more required, can be removed from the system. That will không tính phí the disk space as well as system security.
To uninstall any PHP version just type:
sudo apt remove php5.6 Also uninstall all the modules for that version with the following command:
sudo apt remove php5.6-*
