Question

有没有人知道如何将可能是byte，kb，mb，gb等的类型转换为另一种类型，例如我有以下

ini_get('upload_max_filesize')

//这可能是mb我此刻的值是64m因此我需要补偿较短的缩写

和mb中的值我需要将其转换为kb或任何其他类型

Helper::convertType(ini_get('upload_max_filesize'), 'kb'); the kb coulb be bytes or gb

Answer 1

您可以使用此代码作为帮助程序，使其具有人类可读性：


    /** 
    * Converts bytes into human readable file size. 
    * 
    * @param string $bytes 
    * @return string human readable file size (2,87 Мб)
    * @author Mogilev Arseny 
    */ 
    function FileSizeConvert($bytes)
    {
    $bytes = floatval($bytes);
        $arBytes = array(
            0 => array(
                "UNIT" => "TB",
                "VALUE" => pow(1024, 4)
            ),
            1 => array(
                "UNIT" => "GB",
                "VALUE" => pow(1024, 3)
            ),
            2 => array(
                "UNIT" => "MB",
                "VALUE" => pow(1024, 2)
            ),
            3 => array(
                "UNIT" => "KB",
                "VALUE" => 1024
            ),
            4 => array(
                "UNIT" => "B",
                "VALUE" => 1
            ),
        );

    foreach($arBytes as $arItem)
    {
        if($bytes >= $arItem["VALUE"])
        {
            $result = $bytes / $arItem["VALUE"];
            $result = str_replace(".", "," , strval(round($result, 2)))." ".$arItem["UNIT"];
                break;
            }
        }
        return $result;
    }

或使用此功能手动转换文件大小：


    function changeType($size, $from, $to){
        $arr = ['B', 'KB', 'MB', 'GB', 'TB'];
        $tSayi = array_search($to, $arr);
        $eSayi = array_search($from, $arr);
        $pow = $eSayi - $tSayi;
        return $size * pow(1024, $pow) . ' ' . $to;
    }

    echo changeType(1, 'MB', 'KB');

php类型转换格式mb到kb或任何其他格式

1 个答案: