4 * This file is part of composer/semver.
6 * (c) Composer <https://github.com/composer>
8 * For the full copyright and license information, please view
9 * the LICENSE file that was distributed with this source code.
12 namespace Composer\Semver;
14 use Composer\Semver\Constraint\Constraint;
19 * Evaluates the expression: $version1 > $version2.
21 * @param string $version1
22 * @param string $version2
26 public static function greaterThan($version1, $version2)
28 return self::compare($version1, '>', $version2);
32 * Evaluates the expression: $version1 >= $version2.
34 * @param string $version1
35 * @param string $version2
39 public static function greaterThanOrEqualTo($version1, $version2)
41 return self::compare($version1, '>=', $version2);
45 * Evaluates the expression: $version1 < $version2.
47 * @param string $version1
48 * @param string $version2
52 public static function lessThan($version1, $version2)
54 return self::compare($version1, '<', $version2);
58 * Evaluates the expression: $version1 <= $version2.
60 * @param string $version1
61 * @param string $version2
65 public static function lessThanOrEqualTo($version1, $version2)
67 return self::compare($version1, '<=', $version2);
71 * Evaluates the expression: $version1 == $version2.
73 * @param string $version1
74 * @param string $version2
78 public static function equalTo($version1, $version2)
80 return self::compare($version1, '==', $version2);
84 * Evaluates the expression: $version1 != $version2.
86 * @param string $version1
87 * @param string $version2
91 public static function notEqualTo($version1, $version2)
93 return self::compare($version1, '!=', $version2);
97 * Evaluates the expression: $version1 $operator $version2.
99 * @param string $version1
100 * @param string $operator
101 * @param string $version2
105 public static function compare($version1, $operator, $version2)
107 $constraint = new Constraint($operator, $version2);
109 return $constraint->matches(new Constraint('==', $version1));