Question

I have a php form. Here i included the action page on the top and the action is php self. i have submitted the page and got the submit message. But when i refresh that page( using f5) again the pge re submitted. how i avoid this ?

Answer 1

It’s none standard way to submit a form to itself.
You have to have an extra file that will process your data and then return to your main page.

extra file:

if(isset($_POST['submit'])){
    $done = 1;
} else $done = 0;
header('Location: '.$_SERVER['HTTP_REFERER']."?done=$done");

also you can use :

header('Refresh: 5; URL="mainpage.php"'); 

if you have to post data to itself.