php-semver -- The semantic versioner for npm ported to PHP

Ported from node-semver 1.1.2 to PHP

php-semver 2.x is compatible with semver 1.0.0, and NOT with semver 2.0.0, have a look at php-semver 3.x if you require semver 2.0.0 compatibility

Usage

<?php

use vierbergenlars\SemVer\version;
use vierbergenlars\SemVer\expression;
use vierbergenlars\SemVer\SemVerException;

// Check if a version is valid
$semver = new version('1.2.3');
$semver = new version('a.b.c'); //SemVerException thrown

//Get a clean version string
$semver = new version('=v1.2.3');
$semver->getVersion(); //'1.2.3'

//Check if a version satisfies a range
$semver = new version('1.2.3');
$semver->satisfies(new expression('1.x || >=2.5.0 || 5.0.0 - 7.2.3')); //true
# OR
$range = new expression('1.x || >=2.5.0 || 5.0.0 - 7.2.3');
$range->satisfiedBy(new version('1.2.3')); //true

//Compare two versions
version::gt('1.2.3', '9.8.7'); //false
version::lt('1.2.3', '9.8.7'); //true

Versions

A version is the following things, in this order:

a number (Major)
a period
a number (minor)
a period
a number (patch)
OPTIONAL: a hyphen, followed by a number (build)
OPTIONAL: a collection of pretty much any non-whitespace characters (tag)

A leading "=" or "v" character is stripped off and ignored.

Comparisons

The ordering of versions is done using the following algorithm, given two versions and asked to find the greater of the two:

If the majors are numerically different, then take the one with a bigger major number. 2.3.4 > 1.3.4
If the minors are numerically different, then take the one with the bigger minor number. 2.3.4 > 2.2.4
If the patches are numerically different, then take the one with the bigger patch number. 2.3.4 > 2.3.3
If only one of them has a build number, then take the one with the build number. 2.3.4-0 > 2.3.4
If they both have build numbers, and the build numbers are numerically different, then take the one with the bigger build number. 2.3.4-10 > 2.3.4-9
If only one of them has a tag, then take the one without the tag. 2.3.4 > 2.3.4-beta
If they both have tags, then take the one with the lexicographically larger tag. 2.3.4-beta > 2.3.4-alpha
At this point, they're equal.

Ranges

The following range styles are supported:

>1.2.3 Greater than a specific version.
<1.2.3 Less than
1.2.3 - 2.3.4 := >=1.2.3 <=2.3.4
~1.2.3 := >=1.2.3 <1.3.0
~1.2 := >=1.2.0 <2.0.0
~1 := >=1.0.0 <2.0.0
1.2.x := >=1.2.0 <1.3.0
1.x := >=1.0.0 <2.0.0

Ranges can be joined with either a space (which implies "and") or a || (which implies "or").

Functions

$version->valid(): Return the parsed version, or null if it's not valid.
$version->inc($type): Return the version incremented by the release type (major, minor, patch, or build), or null if an invalid release type is provided.

Comparison

version::gt($v1, $v2): v1 > v2
version::gte($v1, $v2): v1 >= v2
version::lt($v1, $v2): v1 < v2
version::lte($v1, $v2): v1 <= v2
version::eq($v1, $v2): v1 == v2 This is true if they're logically equivalent, even if they're not the exact same string. You already know how to compare strings.
version::neq($v1, $v2): v1 != v2 The opposite of eq.
version::cmp($v1, $comparator, $v2): Pass in a comparison string, and it'll call the corresponding function above. "===" and "!==" do simple string comparison, but are included for completeness. Throws if an invalid comparison string is provided.
version::compare($v1, $v2): Return 0 if v1 == v2, 1 if v1 > v2, or -1 if v1 < v2. Sorts in ascending order if passed to usort()
version::rcompare($v1, $v2): The reverse of compare. Sorts an array of versions in descending order when passed to usort().

Ranges

$expression->validRange(): Return the valid range or null if it's not valid
$version->satisfies($range): Return true if the version satisfies the range.
$expression->maxSatisfying($versions): Return the highest version in the array that satisfies the range, or null if none of them do.

Thanks to

All contributors (https://github.com/vierbergenlars/php-semver/graphs/contributors)

@isaacs and other contributors to node-semver