double submission when refresh php
I'm trying to correct the issue of double submit in my script. When I press submit it only updates mysql once(which is what I want). However, when I hit refresh it updates mysql again. It seems to ignore the if statement once the refresh button is hit. What would I do to stop this here is my code if (isset($_POST['submitButton'])) { //do something } <form action = "table.php" method="post"> <label for="submitButton"></label> <input type="submit" name="submitButton" id="submitButton" value="Submit Form"/> </form> When you refresh the page - the POST IS SENT AGAIN Some browsers actually warn you