The Debian 9 Operating system comes with PHP version 7.0, and you can install like any other application package using the apt package manager.
Today, in this article, we will learn to install PHP 7.2 on Debian 9 machine.
To perform practical stuff of this tutorial, make sure you have Debian 9 installed machine and user to log in on system with sudo privileges.
Install PHP 7.2 on Debian 9
To install PHP 7.2 on Debian 9 operating system follow below steps:
Step 1: Update package list and install dependencies
To install any package on Debian system need to update the repository’s package list by using the following command:
After updating package first need to install dependencies library package, as shown below:
Step 2: Enable Ondrej’s repository
To enable repository first import the repository’s GPG key using curl command:
After importing GPG key, you can enable the Ondrej’s repository by using the following command:
Step 3: Install PHP 7.2
After enabling the Ondrej’s repository, again update the package list and install PHP by using the following command:
Step 4: Verify Installation
You can verify the php installation by checking the version of PHP by using “php –v” command, as shown below:
Configuring Apache to run PHP
If you are running the PHP application on the web browser, you have to configure it with web server Apache or Nginx.
In this section, we will see how to configure an Apache web server with PHP 7.2.
To configure PHP with apache, you have to install PHP and apache library for PHP by using below command:
After installation of PHP and apache library restart the apache service:
Configure Nginx to run PHP
Nginx doesn’t have built-in support for PHP like an apache web server. So, to use Nginx with PHP need to install another application PHP FPM, which will handle PHP files and operation.
You can install PHP and PHP FPM package by using the following command:
Once the PHP FPM package installed in your system, you can handle it like any other application. You can enable, start, or stop services.
You can check the status of PHP FPM by using below command:
To use PHP FPM with Nginx web server, need to edit the server block and add the following code so the Nginx can process php files using PHP FPM:
After configuring the server block, need to restart Nginx service by using below command:
Install PHP extensions
PHP has numbers of functionalities, which can have enabled by using several numbers of PHP extensions. To enable those features, need to install PHP extension by using the following command syntax:
For example, if you want to install GD, IMAP PHP extension, you can install by using the following command:
After installation of PHP extension, you need to restart webserver apache/nginx and PHP FPM services.
You can test PHP by using a web server, and you can identify PHP is running by a web server. To verify PHP with the webserver, create a new file with name info.php inside the web server’s root directory “/var/www/html” with the following code:
Save the file and open the file into a web browser like below:
The function phpinfo will print the information about PHP configuration as shown as below image:
Now, you have learned “How to install PHP on Debian 9 Operating System?” and also learn to configure PHP with a web server like Apache or Nginx.