Install Composer on Windows 10

Requirements

You need PHP on your computer. Check:

php -v

If PHP is not installed, install it first (for example with XAMPP, or by unzipping PHP from windows.php.net and adding its folder to the PATH). Check again after the install.

Download Composer

Go to the Composer website and download Composer-Setup.exe.

Run the installer

1. Choose the install mode. Install for all users (needs admin rights) is the usual choice. Developer mode installs Composer in a way that lets you edit its files; it is for people who work on Composer itself.

   

2. Choose the install path for Composer.

   

3. Choose the PHP executable. Point the installer to your php.exe. If PHP is in the PATH, it finds it by itself. The installer may warn you about settings in php.ini, such as the openssl extension. Fix them if it asks.

   

4. Proxy settings. If you use a proxy, enter it. If not, leave it blank.

   

5. Review and install.

   

6. Read the summary of the environment changes, and click Install.

   

7. Click Finish.

   

The installer adds Composer to the PATH.

Check the install

Open a new Command Prompt and run:

composer -V

Use Composer

composer init
composer require vendor/package
composer install
composer update

Quick recap

• Install PHP first and check php -v.
• Run Composer-Setup.exe.
• Check with composer -V in a new Command Prompt.