PHP文件大小报告旧大小 [英] PHP filesize reporting old size

问题描述

以下代码是我编写的PHP Web服务的一部分.它需要一些上载的Base64数据，对其进行解码，然后将其附加到文件中.一切正常.

The following code is part of a PHP web-service I've written. It takes some uploaded Base64 data, decodes it, and appends it to a file. This all works fine.

问题是，当我在追加操作之后读取文件大小时，得到的文件大小是在追加操作之前的.

The problem is that when I read the file size after the append operation I get the size the file was before the append operation.

$fileOut = fopen($filepath.$filename, "ab")
fwrite($fileOut, base64_decode($data));
fflush($fileOut);
fclose($fileOut);

$newSize = filesize($filepath.$filename);   // gives old file size

我在做什么错了?

系统为:

• PHP 5.2.14
• Apache 2.2.16
• Linux内核2.6.18

推荐答案

在基于Linux的系统上，由filesize()提取的数据为"statcached".

On Linux based systems, data fetched by filesize() is "statcached".

尝试在文件大小调用之前调用 clearstatcache(); .

Try calling clearstatcache(); before the filesize call.

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