how to fix "refresh= resubmitting of form"

[fugix]

hey guys,

 

im trying to figure out how to fix the issue of after a form is submitted, when i click refresh, and the form is submitted again, i know why it does it but im not sure how to remedy it...any thoughts?

[efficacious]

you could try setting a session variable to flag that the form has been submitted once and then when the page is refreshed you can use php to hide the form or w/e

 

if(isset($_SESSION['FormSent']))
{
   //No Form
}
else
{
  //Form
}

? maybe?

[fugix]

i need the form to always be there though

[efficacious]

you could do a redirect after the sumbmission so that its already past the point of return.. just carry the result data with you to the next page.. that way if the user refreshes.. nothing (on that page) would have been submitted so the submission will never have to be repeated

[fugix]

hmmm, il try that

[ignace]

Submit your POST data to different/same page, process it, then redirect them to wherever it is you want them to go.

 

http://en.wikipedia.org/wiki/Post/Redirect/Get

 

if($_SERVER['REQUEST_METHOD'] == 'POST') {
  // do stuff with $_POST
  
  // change from POST to GET
  header('Location: ' . $_SERVER['SCRIPT_NAME']);
  exit(0);
}

// form

[efficacious]

i said that already but the posted resource is nice

[spiderwell]

this came up the other day on here, post by double dee i think.

 

all the suggestions above were stated in that post too. I think the session idea is best, combined with the redirect to really lock it down.

 

wonder if you can remove/reset browser history in javascript, and prevent back being pressed, hehe now that would be cool

[fugix]

yeah, its more of a big deal in chrome than any other browser...quite annoying

[ignace]

It's in every browser. It's not specific to one browser.

[fugix]

thank you for the resource....very helpful