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最快方法计算文件大小，输出' B', ' KB', ' MB', ' GB', ' TB'

PHP中文网
PHP中文网Original
2016-05-26 08:21:011292browse

代码

<?php
date_default_timezone_set(&#39;UTC&#39;);

function format_bytes($size)
{ 
	$arr = array(&#39; B&#39;, &#39; KB&#39;, &#39; MB&#39;, &#39; GB&#39;, &#39; TB&#39;); 
	for ($f = 0; $size >= 1024 && $f < 4; $f++)
	{
		$size /= 1024; 
	}
	return round($size, 2).$arr[$f]; 
}
echo format_bytes(&#39;123456789&#39;);
?>
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