No, an HTTP redirect. You can use the header() function to send http headers with PHP.
This way, you can get the info from the form, store it (probably in your session), and then redirect to the same page to send your response. Since you never send a body response to the actual form submission, the user's browser won't store it in its history (and so, can't submit the form again on refresh/back/etc.).
when a form is filled and send, if you refresh the page, its says that the form will send again. (submit the form again).
What is a good way to prevent this from happening? or kill this session?
any guidance in this?
thank you
Use the PHP script that takes the form data to redirect back to that page.
do u mean using meta refresh ?
No, an HTTP redirect. You can use the header() function to send http headers with PHP.
This way, you can get the info from the form, store it (probably in your session), and then redirect to the same page to send your response. Since you never send a body response to the actual form submission, the user's browser won't store it in its history (and so, can't submit the form again on refresh/back/etc.).
@amis traq said right method to prevent your issue