Avoiding form resubmit in php when pressing f5

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Your method could work in theory, but there’s a much easier way.

After submitting the form successfully, perform a redirect. It doesn’t matter where to, but it’ll clear the $_POST.

header('Location: http://www.example.com/form.php');

In your case, it sounds like you want to redirect to the page you’re already on. Append a $_GET parameter to the URL if you want to display a confirmation message.

Hope this helps,

Tom

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