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composer

A package-based dependency manager for PHP projects.

More information.

Interactively create a `composer.json` file:

composer init

Add a package as a dependency for this project, adding it to `composer.json`:

composer require {user/package_name}

Install all the dependencies in this project's `composer.json` and create `composer.lock`:

composer install

Uninstall a package from this project, removing it as a dependency from `composer.json`:

composer remove {user/package_name}

Update all the dependencies in this project's `composer.json` and note versions in `composer.lock` file:

composer update

Update composer lock only after updating `composer.json` manually:

composer update --lock

Learn more about why a dependency can't be installed:

composer why-not {user/package_name}

Update composer to its latest version:

composer self-update

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This work is licensed under the Creative Commons Attribution 4.0 International License (CC-BY).

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