Christian WellsComposer is an essential dependency manager for PHP developers. It simplifies the process of managing dependencies in PHP projects and ensures that all required packages are easily accessible. In this article, we will guide you through the step-by-step process of installing Composer on Rocky Linux 9, enabling you to streamline your PHP development workflow.
Prerequisites
Before we begin the installation process, make sure you have the following prerequisites in place:
- A server running Rocky Linux 9.
- Root or sudo access to the server.
Step 1: Install PHP
The first step in installing Composer is to ensure that PHP is installed on your Rocky Linux 9 server. If PHP is not yet installed, you can use the dnf package manager to install it by running the following command:
dnf install php
After running the command, you will see the output indicating the installation status of PHP. If PHP is already installed, the output will inform you that there is “Nothing to do.”
Step 2: Download Composer Installer
Once PHP is installed, the next step is to download the Composer installer. To do this, you need to install the wget package, which allows you to download files from the internet. Install wget by running the following command:
dnf -y install wget
With wget installed, you can now use it to download the Composer installer file from the official website. Run the following command to download the installer:
wget https://getcomposer.org/installer -O composer-installer.php
The output will display the progress of the download and the location where the installer file has been saved. In this case, the file is saved as “composer-installer.php” in the current directory.
Step 3: Install PHP Composer
With the Composer installer file downloaded, you can proceed to install Composer on your Rocky Linux 9 server. Run the following command to execute the installer:
php composer-installer.php --filename=composer --install-dir=/usr/local/bin
The output will confirm that the installation is successful and that Composer has been installed to the designated directory. It is important to note that running Composer as the root or super user is not recommended. To verify the installation and check the version of Composer installed, run the following command:
composer --version
The output will display the Composer version information, confirming the successful installation.
Step 4: Testing Composer
To ensure that Composer is functioning correctly, you can perform a quick test. Simply run the following command:
composer
The output will display the Composer logo and version information, indicating that Composer is ready to be used.
Conclusion
Congratulations! You have successfully installed Composer on your Rocky Linux 9 server. Composer is now ready to help you manage dependencies and streamline your PHP development workflow. Make sure to use Composer responsibly and avoid running it as the root or super user to ensure the security and stability of your projects.
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