Chris@0: composer/semver
Chris@0: ===============
Chris@0: 
Chris@0: Semver library that offers utilities, version constraint parsing and validation.
Chris@0: 
Chris@0: Originally written as part of [composer/composer](https://github.com/composer/composer),
Chris@0: now extracted and made available as a stand-alone library.
Chris@0: 
Chris@0: [![Build Status](https://travis-ci.org/composer/semver.svg?branch=master)](https://travis-ci.org/composer/semver)
Chris@0: 
Chris@0: 
Chris@0: Installation
Chris@0: ------------
Chris@0: 
Chris@0: Install the latest version with:
Chris@0: 
Chris@0: ```bash
Chris@0: $ composer require composer/semver
Chris@0: ```
Chris@0: 
Chris@0: 
Chris@0: Requirements
Chris@0: ------------
Chris@0: 
Chris@0: * PHP 5.3.2 is required but using the latest version of PHP is highly recommended.
Chris@0: 
Chris@0: 
Chris@0: Version Comparison
Chris@0: ------------------
Chris@0: 
Chris@0: For details on how versions are compared, refer to the [Versions](https://getcomposer.org/doc/articles/versions.md)
Chris@0: article in the documentation section of the [getcomposer.org](https://getcomposer.org) website.
Chris@0: 
Chris@0: 
Chris@0: Basic usage
Chris@0: -----------
Chris@0: 
Chris@0: ### Comparator
Chris@0: 
Chris@0: The `Composer\Semver\Comparator` class provides the following methods for comparing versions:
Chris@0: 
Chris@0: * greaterThan($v1, $v2)
Chris@0: * greaterThanOrEqualTo($v1, $v2)
Chris@0: * lessThan($v1, $v2)
Chris@0: * lessThanOrEqualTo($v1, $v2)
Chris@0: * equalTo($v1, $v2)
Chris@0: * notEqualTo($v1, $v2)
Chris@0: 
Chris@0: Each function takes two version strings as arguments. For example:
Chris@0: 
Chris@0: ```php
Chris@0: use Composer\Semver\Comparator;
Chris@0: 
Chris@0: Comparator::greaterThan('1.25.0', '1.24.0'); // 1.25.0 > 1.24.0
Chris@0: ```
Chris@0: 
Chris@0: ### Semver
Chris@0: 
Chris@0: The `Composer\Semver\Semver` class provides the following methods:
Chris@0: 
Chris@0: * satisfies($version, $constraints)
Chris@0: * satisfiedBy(array $versions, $constraint)
Chris@0: * sort($versions)
Chris@0: * rsort($versions)
Chris@0: 
Chris@0: 
Chris@0: License
Chris@0: -------
Chris@0: 
Chris@0: composer/semver is licensed under the MIT License, see the LICENSE file for details.