How to Install and Use Composer – The Complete Tutorial


Composer Composer is a dependency manager for PHP. In this way, they will not have to build their webpage or web application from the ground-up.

What’s great is that the composer can resolve dependencies on a per-project basis. 

Before you learn how to install Composer, make sure you have access to the command line interface on your system or server.

Step 1: Installation Composer 

This section will show you how to install Shared Hosting and Composer on popular operating systems such as Linux, MacOS, and Windows.

1. Installing Composer on Shared Hosting, Linux, or MacOS To install Composer on 
Shared Hosting, Linux (PC or Server), the command and macOS are the same.

Note that the Composer comes pre-installed on Hostinger’s Premium and Business Shared Hosting Plan. If you are using one of them, skip this part. However, if you have found that it is out of date, you can update the composer by running this command:

Follow this instruction to learn how to install Composer on your system: Connect to your hosting account using an SSH connection. You can learn to do this from our SSH tutorial. 
Download the musician from the official website using the following command:

The long string of characters in the above command (string a5c698ff … ‘) is the signature of the installer. This changes every time a new version of the composer appears. Therefore, be sure to get the latest SHA-384 from this page.

Once this is completed, you can install the musician locally or globally. Local installation means that the dependency manager will be stored in your current directory, and you must specify the path before executing the corresponding commands. Meanwhile, the global installation allows you to run Composer by storing it in / usr / local / bin directory from anywhere on your system. How to complete both methods:

2. Installing Composer on Windows 

Like most other programs, getting started with Composer is very simple on a Windows machine. No command line instructions are required to download and install the software.

Install PHP on your computer. 

Run the Composer Installation Wizard. When it asks you to activate developer mode, ignore it and continue with the installation process. On Windows the Windows Installation Wizard 
will pop up another window and ask you to locate the PHP command line. By default, it is in C: /xampp/php/php.exe. After specifying the location, click Next. 
You will be prompted with proxy settings. Do not check the box and release the part by pressing Next. Then, on the last window, click Install.
After completing the installation, open a command prompt. 

Good work! You have installed Composer on your Windows computer. The installer will automatically add the composer to your PATH variable. Now you can open a command prompt and run the software from anywhere.

Step 2: Understanding and Understanding Composer 

To achieve this, you must generate the Composer.jon file. You can think of it as a search list for the composer. This file contains packages (dependencies) that must be downloaded.

In addition, composer.json also checks for version compatibility with your project. This means that if you are using an older package, Composer.jon will tell you to avoid future issues.

You have the option to update and update the composer. However, given that this is a tutorial for automating redundant tasks, we do not recommend you create the file manually. Demonstrate the utility of Composer.json by creating a sample project.

Our project is a simple PHP timer, which allows developers to find out how much time code to execute. It is highly useful for debugging and optimization purposes.


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