90 lines
2.3 KiB
PHP
90 lines
2.3 KiB
PHP
|
<?php
|
||
|
|
|
||
|
|
/*
|
||
|
|
* This file is part of the Symfony package.
|
||
|
|
*
|
||
|
|
* (c) Fabien Potencier <fabien@symfony.com>
|
||
|
|
*
|
||
|
|
* For the full copyright and license information, please view the LICENSE
|
||
|
|
* file that was distributed with this source code.
|
||
|
|
*/
|
||
|
|
|
||
|
|
namespace Symfony\Component\Intl\Util;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Facilitates the comparison of version strings.
|
||
|
|
*
|
||
|
|
* @author Bernhard Schussek <bschussek@gmail.com>
|
||
|
|
*/
|
||
|
|
class Version
|
||
|
|
{
|
||
|
|
/**
|
||
|
|
* Compares two versions with an operator.
|
||
|
|
*
|
||
|
|
* This method is identical to {@link version_compare()}, except that you
|
||
|
|
* can pass the number of regarded version components in the last argument
|
||
|
|
* $precision.
|
||
|
|
*
|
||
|
|
* Examples:
|
||
|
|
*
|
||
|
|
* Version::compare('1.2.3', '1.2.4', '==')
|
||
|
|
* // => false
|
||
|
|
*
|
||
|
|
* Version::compare('1.2.3', '1.2.4', '==', 2)
|
||
|
|
* // => true
|
||
|
|
*
|
||
|
|
* @param int|null $precision The number of components to compare. Pass
|
||
|
|
* NULL to compare the versions unchanged.
|
||
|
|
*
|
||
|
|
* @see normalize()
|
||
|
|
*/
|
||
|
|
public static function compare(string $version1, string $version2, string $operator, int $precision = null): bool
|
||
|
|
{
|
||
|
|
$version1 = self::normalize($version1, $precision);
|
||
|
|
$version2 = self::normalize($version2, $precision);
|
||
|
|
|
||
|
|
return version_compare($version1, $version2, $operator);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Normalizes a version string to the number of components given in the
|
||
|
|
* parameter $precision.
|
||
|
|
*
|
||
|
|
* Examples:
|
||
|
|
*
|
||
|
|
* Version::normalize('1.2.3', 1);
|
||
|
|
* // => '1'
|
||
|
|
*
|
||
|
|
* Version::normalize('1.2.3', 2);
|
||
|
|
* // => '1.2'
|
||
|
|
*
|
||
|
|
* @param int|null $precision The number of components to include. Pass
|
||
|
|
* NULL to return the version unchanged.
|
||
|
|
*/
|
||
|
|
public static function normalize(string $version, ?int $precision): ?string
|
||
|
|
{
|
||
|
|
if (null === $precision) {
|
||
|
|
return $version;
|
||
|
|
}
|
||
|
|
|
||
|
|
$pattern = '[^\.]+';
|
||
|
|
|
||
|
|
for ($i = 2; $i <= $precision; ++$i) {
|
||
|
|
$pattern = sprintf('[^\.]+(\.%s)?', $pattern);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!preg_match('/^'.$pattern.'/', $version, $matches)) {
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
|
||
|
|
return $matches[0];
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Must not be instantiated.
|
||
|
|
*/
|
||
|
|
private function __construct()
|
||
|
|
{
|
||
|
|
}
|
||
|
|
}
|