PHP Composer is a popular dependency management solution that was designed with the goal of making it easier to install updates and dependencies. This tool determines the required packages and installs them on your system using the correct version according to the needs of the project. PHP Composer is also mainly used to start new projects with the help of PHP frameworks like Laravel and Symfony.
This blog will demonstrate the procedure of installing and using PHP Composer on Ubuntu 22.04. Start.
Install PHP Composer on Ubuntu 22.04
In order to install PHP Composer on Ubuntu 22.04, follow the instructions given
.
Step 1: Update the system packages
First, press “CTRL+ALT+T” and update the system packages
:
Step 2: Install the required packages
Then run the following command for the installation of the required packages for
PHP Composer: 
<img src
=”
https://linuxhint.com/wp-content/uploads/2022/07/install-and-use-php-composer-ubuntu-22-04-03.png” alt=”” />
Step 3: Download
the PHP Composer
installation file Download the PHP Composer installation script using the following the “curl” command
: 
Check the hash of the downloaded PHP composer script with the signatures present on the official page
:
<img src="https://linuxhint.com/wp-content/uploads/2022/07/install-and-use-php-composer-ubuntu-22-04-05.png" alt=
“
” />
Then, validate whether the PHP Composer installer can be run safely or not
:
Step 4: Install PHP
Composer After checking the installer, install PHP Composer on Ubuntu 22.04 using the following command: The output given indicates that PHP Composer version “2.3.7” has
been successfully installed:
<img
src=”https://linuxhint.com/wp-content/uploads/2022/07/install-and-use-php-composer-ubuntu-22-04-07.png” alt=”” /> Step 5: Test PHP Composer installation Finally, test the installation of PHP Composer by running the “composer” command in the terminal:
Now, let’s move towards
using PHP Composerin
Ubuntu 22.04.
Use PHP Composer on Ubuntu 22.04 Follow the instructions below to use PHP Composer on Ubuntu 22.04. Step
1: Createa directory For the purpose of using PHP Composer on Ubuntu 22.04, we will first create a directory named “slugify
“:
Step 2: Move to directory Then, move to the created directory with the help of the given “cd” command:
<img src="https://linuxhint.com/wp-content/uploads/2022/07/install-and-use-php-composer-ubuntu-22-04-10.png" alt=
“” /> Step 3: Install the
package Installthe “cocur/slugify” using the PHP Composer
:
After running the above command, you will also encounter the following error, if the “mbstring” library is not installed on your system
: 
To resolve the error encountered, type the command provided in your terminal:
<img src
=”https://linuxhint.com/wp-content/uploads/2022/07/install-and-use-php-composer-ubuntu-22-04-13.png” alt=”
” />
Then run the command “composer require” again
:
Step 4: File ListNow, list the contents of the current “slugify
” directory:
As our current working directory comprises three files: “vendor“, “composer.lock” and “composer.json“. This indicates that the specified package has been successfully installed
:
<img src="https://linuxhint.com/wp-content/uploads/2022/07/install-and-use-php-composer-ubuntu-22-04-15.png" alt=
“” />
Step 5: Includeautoload script Before any class instance, you need to include the “provider/autoload.php” in your PHP scripts: For example, to create a demo application, we’ll open a new file called ” test.php” in our “nano” editor
: 
After opening the file, add the code given to you below and press “CTRL+O” to save its contents
:
<img src
=”https://linuxhint.com/wp-content/uploads/2022/07/install-and-use-php-composer-ubuntu-22-04-17.png” alt=””
/>
Step 6: Run PHP script Run the given “php” to run the “test.php” script
:
By doing so, the resulting output will be displayed as “hi-everyone-this-is-linuxhint
“:
Uninstall PHP Composer on
Ubuntu 22.04 To uninstall PHP Composer
, type the command provided in the terminal:
We have compiled the easiest method to install, use and uninstall PHP Composer on Ubuntu 22.04. Conclusion To install PHP Composer on
22.04, first install the necessary packages. Then, download PHP Composer and install it on your system. After installing PHP Composer, you can use it to install dependencies or libraries on Ubuntu 22.04. To do this, create a directory, move to it and use the “composer require” command for the installation of the specified package. This blog demonstrated the procedure of installing, using and uninstalling PHP Composer on Ubuntu 22.04.