When you use Composer to manage dependencies in a PHP project, it installs packages in the vendor directory of your project. The vendor directory is created in the root of your project when you run the composer install or composer update command.
Inside the vendor directory, Composer creates a folder for each installed package, containing all the files and code needed for that specific package to function correctly within your project. Composer also generates an autoload.php file in the vendor directory, which handles the autoloading of classes from the installed packages.
The vendor directory is essential for keeping the project’s dependencies separate from your own codebase. This approach helps manage dependencies more efficiently and avoids conflicts between different packages.
It’s important to note that you should not modify or commit the vendor directory to your version control system (e.g., Git). Instead, you should include the composer.json and composer.lock files in version control, which allow you to recreate the vendor directory and its exact dependencies on other machines when needed.
