fread truncates file

[Anon]

I'm using a standard script to read the contents of a file like so:

$filename = "/usr/local/something.txt";
$fd = fopen ($filename, "r");
$contents = fread ($fd, filesize ($filename));
fclose ($fd);

Unfortunately "filesize ($filename)" kept returning 0 even though I knew the file was longer, and after running the script the filesize had been reduced to 0. So I replaced "filesize ($filename)" with an integer like so

$filename = "/usr/local/something.txt";
$fd = fopen ($filename, "r");
$contents = fread ($fd, 4096);
fclose ($fd);

...and now the file gets truncated to 4096 bytes. Does anyone know what in doug's name is going on?

I should mention that this script used to work perfectly on my system, the only possibly relevant, recent change I can think of that is that we upgraded from the old version of Debian to the latest (2.2r5).

[Anon]

Instead of:
$fd = fopen ($filename, "r");
$contents = fread ($fd, filesize ($filename));
fclose ($fd);

Try this:

$contents = implode('', file($filename));

and see what happens. I'm not sure why that's happening, but there's nothing wrong with that portion of the script...maybe it's another part.

Diego

[Anon]

Thanks, I'll try that.

Its definitely this portion of the script that causes the problem, I've broken it down into litte pieces and run them separately to make sure. I think it must be some kind of weird filesystem bug because this is definitely not the way fread is supposed to work.

Cheers
Naomi