php文件大小单位转换

需要之作

function sizecount($filesize){//转换filesize单位
    if($filesize >= 1073741824){
        $filesize = round($filesize/1073741824*100)/100;
        $filesize = $filesize."gb";
    }elseif($filesize >= 1048576){
        $filesize = round($filesize/1048576*100)/100;
        $filesize = $filesize."mb";
    }else{
        $filesize = round($filesize/1024*100)/100;
        $filesize = $filesize."kb";
    }
    return $filesize;
}

没有提供字节单位,感觉一般来说用不上 =_=

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