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Semantic versioning helper library for PHP.

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SemVer
======

<a href="http://semver.org">Semantic versioning</a> helper library
 • Created by <a href="https://www.ChrisKankiewicz.com">Chris Kankiewicz</a> (<a href="https://bsky.app/profile/phlak.dev">@phlak.dev</a>)

---

Requirements
------------

- [PHP](https://php.net) >= 8.1

Installation
------------

```bash
composer require phlak/semver
```

Initializing
------------

```php
use PHLAK\SemVer;

$version = new SemVer\Version(); // Initilializes to '0.1.0'
```

Or initialize with a custom version by passing a version string on creation.
Accepts any valid semantic version string with or without a preceding `v`.

```php
$version = new SemVer\Version('v1.2.3-alpha.5+sha.8d31ff4');
```

Or parse an incomple version string with the static `Version::parse()` constructor.

```php
$version = SemVer\Version::parse('v1')   // Initializes to '1.0.0'
$version = SemVer\Version::parse('v1.2') // Initializes to '1.2.0'
```

Usage
-----

#### Retrieve the version or individual values

```php
$version = new SemVer\Version('v1.2.3-beta.4+007');

echo $version;             // '1.2.3-beta.4+007'
echo $version->major;      // 1
echo $version->minor;      // 2
echo $version->patch;      // 3
echo $version->preRelease; // 'beta.4'
echo $version->build;      // '007'
```

#### Increment the version

```php
$version = new SemVer\Version('v1.2.3');

$version->incrementMajor();      // v1.2.3 -> v2.0.0
$version->incrementMinor();      // v1.2.3 -> v1.3.0
$version->incrementPatch();      // v1.2.3 -> v1.2.4
$version->incrementPreRelease(); // v1.2.3-alpha.5 -> v1.2.3-alpha.6
```

#### Set (override) the version or individual values

```php
$version = new SemVer\Version();

$version->setVersion('v1.2.3');  // v1.2.3
$version->setMajor(3);           // v1.2.3 -> v3.0.0
$version->setMinor(5);           // v1.2.3 -> v1.5.0
$version->setPatch(7);           // v1.2.3 -> 1.2.7
$version->setPreRelease('rc.2'); // v1.2.3 -> v1.2.3-rc.2
$version->setBuild('007');       // v1.2.3 -> v1.2.3+007
```

#### Clear pre-release / build values

```php
$version->setPreRelease(null); // v1.2.3-rc.2 -> v1.2.3
$version->setBuild(null);      // v1.2.3+007 -> v1.2.3
```

#### Check for pre-release / build values

```php
$version->isPreRelease();
$version->hasBuild();
```

#### Compare two SemVer objects

```php
$version1 = new SemVer\Version('v1.2.3');
$version2 = new SemVer\Version('v3.2.1');

$version1->gt($version2);  // false
$version1->lt($version2);  // true
$version1->eq($version2);  // false
$version1->neq($version2); // true
$version1->gte($version2); // false
$version1->lte($version2); // true
```

##### Limit comparison to the major version only

Ignores the minor, patch and pre-release versions completely

```php
$version1 = new SemVer\Version('v1.2.3-alpha.4');
$version2 = new SemVer\Version('v1.3.4-alpha.5');

$version1->gt($version2, Compare::MAJOR);  // false
$version1->lt($version2, Compare::MAJOR);  // false
$version1->eq($version2, Compare::MAJOR);  // true
$version1->neq($version2, Compare::MAJOR); // false
$version1->gte($version2, Compare::MAJOR); // true
$version1->lte($version2, Compare::MAJOR); // true
```

##### Limit comparison to the major and minor versions only

Ignores the patch and pre-release versions completely

```php
$version1 = new SemVer\Version('v1.2.3-alpha.4');
$version2 = new SemVer\Version('v1.2.4-alpha.5');

$version1->gt($version2, Compare::MINOR);  // false
$version1->lt($version2, Compare::MINOR);  // false
$version1->eq($version2, Compare::MINOR);  // true
$version1->neq($version2, Compare::MINOR); // false
$version1->gte($version2, Compare::MINOR); // true
$version1->lte($version2, Compare::MINOR); // true
```

##### Limit comparison to the major, minor and patch versions only

Ignores the pre-release version completely

```php
$version1 = new SemVer\Version('v1.2.3-alpha.4');
$version2 = new SemVer\Version('v1.2.3-alpha.5');

$version1->gt($version2, Compare::PATCH);  // false
$version1->lt($version2, Compare::PATCH);  // false
$version1->eq($version2, Compare::PATCH);  // true
$version1->neq($version2, Compare::PATCH); // false
$version1->gte($version2, Compare::PATCH); // true
$version1->lte($version2, Compare::PATCH); // true
```

Troubleshooting
---------------

For general help and support join our [GitHub Discussions](https://github.com/PHLAK/SemVer/discussions) or reach out on [Bluesky](https://bsky.app/profile/phlak.dev).

Please report bugs to the [GitHub Issue Tracker](https://github.com/PHLAK/SemVer/issues).

This project is liscensed under the [MIT License](https://github.com/PHLAK/SemVer/blob/master/LICENSE).

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