FileSize function, find out how to resolve

FileSize functions, parsing,
Warning:filesize () [Function.filesize]: Stat failed for Backup 1 of Wampmanager.ini.install in D:\wamp\www\dir\dir2.php o N Line 10
Backup 1 of Wampmanager.ini.install is a file with a size of

Warning:filesize () [Function.filesize]: Stat failed for Backup 1 of Wampmanager.tpl.install in D:\wamp\www\dir\dir2.php o N Line 10
Backup 1 of Wampmanager.tpl.install is a file with a size of

Warning:filesize () [Function.filesize]: Stat failed for Backup 2 of Wampmanager.ini.install in D:\wamp\www\dir\dir2.php o N Line 10
Backup 2 of Wampmanager.ini.install is a file with a size of

Warning:filesize () [Function.filesize]: Stat failed for Backup 2 of Wampmanager.tpl.install in D:\wamp\www\dir\dir2.php o N Line 10
Backup 2 of Wampmanager.tpl.install is a file with a size of

Warning:filesize () [Function.filesize]: Stat failed for barimage.bmp in D:\wamp\www\dir\dir2.php on line 10
Barimage.bmp is a file with a size of


-----------------------------------------

With FileSize ($file), the output is these, why AH? Backup 1 of Wampmanager.ini.install,...,barimage.bmp are these files not statistically sized?

------Solution--------------------
Write the path to the folder as well.
------Solution--------------------
You need an absolute path.
I just tested it, and I can get his number of bytes.
If the file does not exist, it will return null.

$file _s = filesize (' absolute path to your files ');
if (! $file _s)
$file _s = 0;
echo "
\ nthe file size is = $file _s "." Bytes
\ n ";

