php有关问题(急功近利)

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Release: 2016-06-13 13:51:08
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php问题(急功近利)
用PHP写一个格式化显示文件大小的函数。即显示为345b,123K,78M,1.2G,这就是说,超过1K的用K为单位显示,超过1M的以M为单位显示。

------解决方案--------------------

PHP code
$G){
            $file_size = ($file_size / $G)." G";
        }elseif($file_size>$M){
            $file_size = ($file_size / $M) ." M";
        }elseif($file_size > $K){
            $file_size = ($file_size /$K). " K";
        }else{
            $file_size = $file_size. " byte";
        }
        return $file_size;
    }
    echo getFileSize("new_file.html");
?> 
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