False
        

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      Packagist is the main Composer repository. It aggregates public PHP packages installable with Composer.

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Getting Started

  Define Your Dependencies

  Put a file named composer.json at the root of your project, containing your project dependencies:

  { "require": { "vendor/package": "1.3.2", "vendor/package2": "1.*", "vendor/package3": "^2.0.3" } }

  For more information about packages versions usage, see the composer documentation.

  Install Composer In Your Project

  Run this in your command line:

  curl -sS https://getcomposer.org/installer | php

  Or download composer.phar into your project root.

  See the Composer documentation for complete installation instructions on various platforms.

  Install Dependencies

  Execute this in your project root.

  php composer.phar install

  Autoload Dependencies

  If your packages specify autoloading information, you can autoload all the dependencies by adding this to your code:

  require 'vendor/autoload.php';

  Browse the packages we have to find more great libraries you can use in your project.

Publishing Packages

  Define Your Package

  Put a file named composer.json at the root of your package's repository, containing this information:

  { "name": "your-vendor-name/package-name", "description": "A short description of what your package does", "require": { "php": ">=8.2", "another-vendor/package": "1.*" } }

  This is the strictly minimal information you have to give.

  For more details about package naming and the fields you can use to document your package better, see the about page.

  Validate The File

  Run composer validate to check that your file has no syntax errors.

  Commit The File

  Add the composer.json to your git or other VCS repository and commit it.

  Publish It

  Log in or register on this site, then hit the submit button in the menu.

  Once you entered your public repository URL in there, your package will be automatically crawled periodically. You just have to make sure you keep the composer.json file up to date.

  Sharing Private Code

  Use Private Packagist if you want to share private code as a Composer package with colleagues or customers without publishing it for everyone on Packagist.org. Private Packagist allows you to manage your own private Composer repository with per-user authentication, team management and integration in version control systems.

Latest News

Announcing the Composer & Packagist Sponsorship Program - Jul 30, 2026

Today we are launching a formal sponsorship program for Composer and Packagist.org, together with new public sponsor pages on packagist.org/sponsor and getcomposer.org/sponsor. We want to start by tha...

Immutable Versions on Packagist - Jul 07, 2026

This is the next post in our supply chain security series, following the supply chain security update and the Composer 2.10 release. Each post in this series covers a specific behavior worth understan...

Composer 2.10 Release - May 28, 2026

We are excited to announce the release of Composer 2.10.0, introducing native malware filtering and consolidated future-proof customizable dependency policy configuration to control the handling of se...

An update on Composer & Packagist supply chain security - May 27, 2026

The last months, and even more so the last weeks, saw an increasing amount of software supply chain attacks targeting open-source ecosystems. A handful of these have hit the PHP ecosystem too, via tak...

Composer 2.9.8 and 2.2.28 fix GitHub Actions token disclosure in error messages - May 13, 2026

Please immediately update Composer to version 2.9.8 or 2.2.28 (LTS) by running composer.phar self-update. The new releases fix a vulnerability where Composer leaks the full contents of GitHub Actions ...

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