filesize文件大小单位转换

function getsize($size, $format) {  
    $p = 0;  
    if ($format == \kb\) {  
        $p = 1;  
    } elseif ($format == \mb\) {  
        $p = 2;  
    } elseif ($format == \gb\) {  
        $p = 3;  
    }  
    $size /= pow(1024, $p);  
    return number_format($size, 3);  
}  
  
$filename = \/data/webroot/usercode/code/resource/test.txt\;  
$size = filesize($filename);  
  
$size = getsize($size, \kb\); //进行单位转换  
echo $size.\kb\;  

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感谢支持与鼓励～