108 lines
2.4 KiB
PHP
108 lines
2.4 KiB
PHP
<?php
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/**
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* I know no such things as genius,it is nothing but labor and diligence.
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*
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* @copyright (c) 2015~2019 BD All rights reserved.
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* @license http://www.apache.org/licenses/LICENSE-2.0
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* @author BD<657306123@qq.com>
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*/
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namespace xin\helper;
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/**
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* 版本检测器
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* 当前版本大于新版本 VersionUtil::check( '1.20.63.56' , '1.20.63.55.56' )===1;
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* 当前版本等于新版本 VersionUtil::check( '1.20.63.56' , '1.20.63.056' )===0;
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* 当前版本小于新版本 VersionUtil::check( '1.20.62.56' , '1.20.63.056' )===-1;
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* 当前版本大于新版本 VersionUtil::gt( '1.20.63.56' , '1.20.63.55.56' )===true;
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* 当前版本等于新版本 VersionUtil::eq( '1.20.63.56' , '1.20.63.056' )===true;
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* 当前版本小于新版本 VersionUtil::lt( '1.20.62.56' , '1.20.63.056' )===true;
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*
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* @package xin\helper
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*/
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final class Version{
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/**
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* 当前版本大于新版本
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*
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* @param string $current
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* @param string $new
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* @return bool
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*/
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public static function gt($current, $new){
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return self::check($current, $new) === 1;
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}
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/**
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* 版本检测
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*
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* @param $current
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* @param $new
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* @return int
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*/
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public static function check($current, $new){
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if($current == $new) return 0;
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$current = explode(".", $current);
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$new = explode(".", $new);
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foreach($current as $k => $cur){
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if(isset($new[$k])){
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if($cur < $new[$k]){
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return -1;
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}elseif($cur > $new[$k]){
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return 1;
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}
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}else{
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return 1;
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}
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}
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return count($new) > count($current) ? -1 : 0;
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}
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/**
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* 当前版本大于或等于新版本
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*
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* @param string $current
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* @param string $new
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* @return bool
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*/
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public static function egt($current, $new){
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$res = self::check($current, $new);
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return $res === 1 || $res === 0;
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}
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/**
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* 当前版本等于新版本
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*
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* @param string $current
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* @param string $new
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* @return bool
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*/
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public static function eq($current, $new){
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return self::check($current, $new) === 0;
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}
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/**
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* 当前版本小于新版本
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*
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* @param string $current
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* @param string $new
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* @return bool
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*/
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public static function lt($current, $new){
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return self::check($current, $new) === -1;
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}
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/**
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* 当前版本小于或等于新版本
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*
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* @param string $current
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* @param string $new
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* @return bool
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*/
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public static function elt($current, $new){
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$res = self::check($current, $new);
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return $res === -1 || $res === 0;
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}
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}
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