Paul Novitski wrote:
At 1/15/2007 01:52 PM, Otto Wyss wrote:
When values are entered on one of my page I submit the result back
to the same page (form action=same_page). Unfortunately each submit
adds an entry into the history, so history back doesn't work in a
single step. Yet if the count of submits were known I could use
goto(n). What's the best way to get this count? PHP or Javascript?
What you're suggesting doesn't sound easy.
I know, but what's a better way to to go back?
If you're going to programmatically take the user to a previous page,
say for example if they click a form button within your page, then
using JavaScript you could simply walk backward through the
window.history() array until you came to an URL that doesn't match
with the current page. Of course such a solution would break if
JavaScript were disabled so you'd need to build a redundant system
server-side to make sure your site didn't break.
My site already heavily depends on Javascript in many places and my
users can be required to have Javascript enabled.
Just looping through history.back() until a different page is reached
could do the trick. Yet is it possible to have a Javascript value across
multiple pages? Has anybody coded something like this?
Since I already store the last different page, I wounder if I could code
a loop sever side in PHP which issues Javascript "history.back".
Of course PHP isn't naturally aware of browser history but you could
store in the session or cookie the name of the last page in the
I already do and currently I just jump to that page but it would be nice
to go backwards so the user doesn't have to enter the same values all
the time.
functioning of the browser, you could simply let it do its thing and
take steps server-side to prevent the user from re-submitting the
current form or whatever your goal is.
I thought that too albeit it means to implement XMLHttpRequests instead
of submits to get results from the database. Yet for me this seems to be
more complicated than just going back through the history. My data is
rather large and complicate structured.
O. Wyss
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