�PNG  IHDR��;���IDATx��ܻn�0���K�� �)(�pA��� ���7�LeG{�� �§㻢|��ذaÆ 6lذaÆ 6lذaÆ 6lom��$^�y���ذag�5bÆ 6lذaÆ 6lذa{���� 6lذaÆ �`����}H�Fkm�,�m����Ӫ���ô�ô!� �x�|'ܢ˟;�E:���9�&ᶒ�}�{�v]�n&�6� �h��_��t�ڠ͵-ҫ���Z;��Z$�.�P���k�ž)�!��o���>}l�eQfJ�T��u і���چ��\��X=8��Rن4`Vw�l�>����n�G�^��i�s��"ms�$�u��i��?w�bs[m�6�K4���O���.�4��%����/����b�C%��t ��M�ז� �-l�G6�mrz2���s�%�9��s@���-�k�9�=���)������k�B5����\��+͂�Zsٲ ��Rn��~G���R���C����� �wIcI��n7jJ���hۛNCS|���j0��8y�iHKֶۛ�k�Ɉ+;Sz������L/��F�*\��Ԕ�#"5��m�2��[S��������=�g��n�a�P�e�ғ�L�� lذaÆ 6l�^k��̱aÆ 6lذaÆ 6lذa;���� �_��ذaÆ 6lذaÆ 6lذaÆ ���R���IEND�B` # Version Library for handling version information and constraints [![Build Status](https://travis-ci.org/phar-io/version.svg?branch=master)](https://travis-ci.org/phar-io/version) ## Installation You can add this library as a local, per-project dependency to your project using [Composer](https://getcomposer.org/): composer require phar-io/version If you only need this library during development, for instance to run your project's test suite, then you should add it as a development-time dependency: composer require --dev phar-io/version ## Version constraints A Version constraint describes a range of versions or a discrete version number. The format of version numbers follows the schema of [semantic versioning](http://semver.org): `..`. A constraint might contain an operator that describes the range. Beside the typical mathematical operators like `<=`, `>=`, there are two special operators: *Caret operator*: `^1.0` can be written as `>=1.0.0 <2.0.0` and read as »every Version within major version `1`«. *Tilde operator*: `~1.0.0` can be written as `>=1.0.0 <1.1.0` and read as »every version within minor version `1.1`. The behavior of tilde operator depends on whether a patch level version is provided or not. If no patch level is provided, tilde operator behaves like the caret operator: `~1.0` is identical to `^1.0`. ## Usage examples Parsing version constraints and check discrete versions for compliance: ```php use PharIo\Version\Version; use PharIo\Version\VersionConstraintParser; $parser = new VersionConstraintParser(); $caret_constraint = $parser->parse( '^7.0' ); $caret_constraint->complies( new Version( '7.0.17' ) ); // true $caret_constraint->complies( new Version( '7.1.0' ) ); // true $caret_constraint->complies( new Version( '6.4.34' ) ); // false $tilde_constraint = $parser->parse( '~1.1.0' ); $tilde_constraint->complies( new Version( '1.1.4' ) ); // true $tilde_constraint->complies( new Version( '1.2.0' ) ); // false ``` As of version 2.0.0, pre-release labels are supported and taken into account when comparing versions: ```php $leftVersion = new PharIo\Version\Version('3.0.0-alpha.1'); $rightVersion = new PharIo\Version\Version('3.0.0-alpha.2'); $leftVersion->isGreaterThan($rightVersion); // false $rightVersion->isGreaterThan($leftVersion); // true ```