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Posted by kenoli on 05/16/07 14:35
Thanks. Yeah, I tried it in a new script with nothing except:
if (isset($_POST)) { echo "Is set!"; } else { echo "Is not set."; }
Output: Is set!
It is definitely set. Learn something everyday. Super globals are
always set. Got it.
--Kenoli
On May 16, 2:30 am, shimmyshack <matt.fa...@gmail.com> wrote:
> On May 16, 6:05 am, kenoli <kenol...@gmail.com> wrote:
>
>
>
> > There is a form on the page with a post method and some submit
> > buttons, however, none of them are triggered here. The script is
> > called using an <a>tag with this kind of thing:
>
> > <a href = "<? echo 'http://' . $_SERVER['PHP_SELF'] . '?pid=' .
> > $row[id]; ?>" >Delete</a>
>
> > It just leaves the page and starts again at the top of the script. It
> > works fine. What caused me to catch it is that I was using:
>
> > if (!isset($_POST))
>
> > to set a switch variable in the case that the data had not been sent
> > via a post submit. It wasn't working so I checked and found the
> > $_POST variable was sure enough set, but empty.
>
> > What would be setting the $_POST variable if the form wasn't
> > triggered.
>
> > --Kenoli
>
> > On May 15, 5:24 pm, Mike P2 <sumguyovrt...@gmail.com> wrote:
>
> > > On May 15, 7:38 pm, kenoli <kenol...@gmail.com> wrote:
>
> > > > I have a script that submits form data via a "post" method to another
> > > > script. I have an href link in the destination script that links back
> > > > to itself for processing form data on that page with some "get" data
> > > > appended to the URL. I noticed that after clicking on that link and
> > > > sending the action back to itself, a check of isset($_POST) returns
> > > > true while displaying the content of $_POST displays an empty array.
> > > > I had expected isset($_POST) to return false, thinking the script
> > > > would unset the $_POST array when the <a> link sent it back to
> > > > itself. Instead, it leaves $_POST set but empty.
>
> > > > What is the convention here?
>
> > > > --Kenoli
>
> > > You should check if some variable from the posting form is set instead
> > > of the entire $_POST. The submit button or something like that. If the
> > > variables are the same for some reason, you can add a hidden field in
> > > the posting form and check if that is set.
>
> > > -Mike PII
>
> try it with GET, COOKIE, REQUEST, FILES, SESSION, all will be set but
> empty (if you arent populating them).
> they are superglobals, always set in the current scope.
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