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最快方法计算文件大小，输出' B', ' KB'

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2016-06-06 19:35:131005browse

目前为止，发现可能是最快的计算方法 是不是还有更快的呢？ PHP ?phpdate_default_timezone_set('UTC');function format_bytes($size){ $arr = array(' B', ' KB', ' MB', ' GB', ' TB'); for ($f = 0; $size = 1024 $f 4; $f++){$size /= 1024; }return roun

目前为止，发现可能是最快的计算方法
是不是还有更快的呢？ PHP 
<?php
date_default_timezone_set('UTC');

function format_bytes($size)
{ 
	$arr = array(' B', ' KB', ' MB', ' GB', ' TB'); 
	for ($f = 0; $size >= 1024 && $f < 4; $f++)
	{
		$size /= 1024; 
	}
	return round($size, 2).$arr[$f]; 
}
echo format_bytes('123456789');
?>
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