80 lines
		
	
	
		
			2.0 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			80 lines
		
	
	
		
			2.0 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
<?php
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namespace fast;
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/**
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 * 版本检测和对比
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 */
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class Version
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{
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    /**
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     * 检测版本是否的版本要求的数据中
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     *
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     * @param string $version
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     * @param array  $data
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     * @return bool
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     */
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    public static function check($version, $data = [])
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    {
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        //版本号以.分隔
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        $data = is_array($data) ? $data : [$data];
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        if ($data) {
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            if (in_array("*", $data) || in_array($version, $data)) {
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                return true;
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            }
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            $ver = explode('.', $version);
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            if ($ver) {
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                $versize = count($ver);
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                //验证允许的版本
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                foreach ($data as $m) {
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                    $c = explode('.', $m);
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                    if (!$c || $versize != count($c)) {
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                        continue;
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                    }
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                    $i = 0;
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                    foreach ($c as $a => $k) {
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                        if (!self::compare($ver[$a], $k)) {
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                            continue 2;
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                        } else {
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                            $i++;
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                        }
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                    }
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                    if ($i == $versize) {
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                        return true;
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                    }
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                }
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            }
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        }
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        return false;
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    }
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    /**
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     * 比较两个版本号
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     *
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     * @param string $v1
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     * @param string $v2
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     * @return boolean
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     */
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    public static function compare($v1, $v2)
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    {
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        if ($v2 == "*" || $v1 == $v2) {
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            return true;
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        } else {
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            $values = [];
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            $k = explode(',', $v2);
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            foreach ($k as $v) {
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                if (strpos($v, '-') !== false) {
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                    list($start, $stop) = explode('-', $v);
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                    for ($i = $start; $i <= $stop; $i++) {
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                        $values[] = $i;
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                    }
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                } else {
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                    $values[] = $v;
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                }
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            }
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            return in_array($v1, $values) ? true : false;
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        }
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    }
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}
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