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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

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