At 7:21 AM +0000 3/22/08, Lester Caine wrote:
tedd wrote:
Hi gang:
This is probably trivial for most of you, but here's my solution to
the problem I presented earlier.
The problem was, I just wanted to be certain that if a use clicked
a button that they could only do it once. Sounds simple enough, huh?
Certainly, one can use javascript, but I wanted something that was
basic php and html -- here's my solution with code (please provide
critical review):
I had been tracking an intermittent bug for some considerable time
and having finally identified the underlying problem - double click
sends the page request twice, but the second request is processed
before first has updated things! We have tightened up the server end
as much as possible, but not eliminated the problem.
The javascript solution is the only reliable one that I've found but
some sites do not allow it to be enabled. Since having finally
identified the source of the problem, we have improved education and
can now 'spot' a double clicker who in many cases does not even know
they are doing it! People get so used TO double clicking things on
the desktop :( But in some case we suspect that the BROWSER send two
requests perhaps because of a noisy keyboard! On one site that we
pinned down to a particular counter position, changing the keyboard
fixed the problem ( enter was pressing the button ).
Just a word of warning that may explain the occasional double order ;)
--
Lester Caine - G8HFL
Well that sounds good enough reason to use javascript.
I'll add that too.
Thanks,
tedd
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