filesize函数，求解析、该怎么解决
filesize函数，求解析、
Warning: filesize() [function.filesize]: stat failed for Backup 1 of wampmanager.ini.install in D:\wamp\www\dir\dir2.php on line 10
Backup 1 of wampmanager.ini.install是文件，大小为
Warning: filesize() [function.filesize]: stat failed for Backup 1 of wampmanager.tpl.install in D:\wamp\www\dir\dir2.php on line 10
Backup 1 of wampmanager.tpl.install是文件，大小为
Warning: filesize() [function.filesize]: stat failed for Backup 2 of wampmanager.ini.install in D:\wamp\www\dir\dir2.php on line 10
Backup 2 of wampmanager.ini.install是文件，大小为
Warning: filesize() [function.filesize]: stat failed for Backup 2 of wampmanager.tpl.install in D:\wamp\www\dir\dir2.php on line 10
Backup 2 of wampmanager.tpl.install是文件，大小为
Warning: filesize() [function.filesize]: stat failed for barimage.bmp in D:\wamp\www\dir\dir2.php on line 10
barimage.bmp是文件，大小为
-----------------------------------------
用filesize($file)，输出的是这些，为什么啊？Backup 1 of wampmanager.ini.install，...,barimage.bmp这些文件不能统计大小么？
------解决方案--------------------
把文件夹的路径也写上去
------解决方案--------------------
需要绝对路径吧。
我刚才测试了一下，是可以得到他的字节数的。
如果文件不存在，就会返回空。
$file_s = filesize('你的文件的绝对路径');
if(!$file_s)
$file_s = 0;
echo "
\n文件大小是=$file_s"."字节
\n";
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