51 lines
1.9 KiB
Markdown
51 lines
1.9 KiB
Markdown
---
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title: Composer
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---
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## Composer
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Composer is a package manager for PHP packages. You use a `composer.json` file to configure the packages for a PHP project, similar to the `package.json` file in NodeJS projects.
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### Install Composer
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To install Composer, you first have to download it from <a href='https://getcomposer.org/download/' target='_blank' rel='nofollow'>getcomposer.org</a>.
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You can then install Composer locally or globally.
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### Install Packages
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Install packages with `composer install`. Composer will install the packages listed in the `composer.json` file to the vendor/ folder.
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```shell
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composer install
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```
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To install only a specific package, use `composer require <package_name>`. This will only download and install the latest version available to the selected package.
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If you run this command without a `composer.json` file, composer will automatically create it the before the installation.
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```shell
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composer require <package_name>
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```
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### Updating Packages
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Update packages with `composer update`, Composer will automatically download and install the latest versions of the packages listed in the `composer.json` file to the vendor/ folder.
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```shell
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composer update
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```
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To update a single package, use `composer update <package_name>`.
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### Removing Packages
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Removing is easy as installing packages with composer. Just enter `composer remove <package_name>` to uninstall the package from your vendor/ folder. This will automatically update your `composer.json` file.
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```shell
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composer remove
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```
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### More Information:
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* The Composer website: <a href='https://getcomposer.org/' target='_blank' rel='nofollow'>getcomposer.org</a>
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* Composer's GitHub repo: <a href='https://github.com/composer/getcomposer.org' target='_blank' rel='nofollow'>composer/getcomposer</a>
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* The popular PHP package repository that Composer uses to search for packages: <a href='https://packagist.org/' target='_blank' rel='nofollow'>Packagist</a>
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