Posted by Erwin Moller on 01/07/08 09:06

Hanoi wrote:
> Hi,
>
> I would like to have a php file that log informations sent by an image
> request.
>
> For logging, I use fwrite to write on a file.
>
> If more requests are done on the same time, there could be a lost of
> data because the file is open by one process and not available for the
> other processes?
>
> Thanks

Hi,

Yes, you should prepare yourself for that indeed.
Use filelocking:
http://nl2.php.net/manual/en/function.flock.php

Filelocking is reliable, even on Windows.

You'll find a basic (but working) example on that page.

Regards,
Erwin Moller

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