On Wed, November 29, 2006 11:21 am, Jay Blanchard wrote:
> [snip]
> Anyone got a script so I can count clicks on adverts. Doesn't have
> tosve
> to
> myqsl or anything just a text file will do.
> [/snip]
>
> <?php
>
> if("yes" == $adClicked){
> $adClickCountFile = fopen("countClick.txt", "w");
> $getCount = fgets($adClickCountFile, 4096);
> $newCount = $getCount + 1;
> fwrite($adClickCountFile, $newCount);
> fclose($adClickCountFile);
> }
> ?>
This has a race condition where a busy server, or even a not-so-busy
one where 2 people happen to click at the same time, at least one of
them will be "missed", at best.
There's also a distinct possiblity of the counter file getting
completely trashed, depending on the OS and its underlying atomicity
of fwrite().
And, finally, you'd need "w+" in that fopen() to avoid wiping out the
old data to start with.
For this reason, and more, you're almost-for-sure better off keeping
track in a database which solves all the nasty race condition issues.
YMMV
>
> YMMV
>
> --
> PHP General Mailing List (http://www.php.net/)
> To unsubscribe, visit: http://www.php.net/unsub.php
>
>
--
Some people have a "gift" link here.
Know what I want?
I want you to buy a CD from some starving artist.
http://cdbaby.com/browse/from/lynch
Yeah, I get a buck. So?
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
