Form is resubmitted when the back button is pressed

php html server-side-scripting
Devansh Kumar picture Devansh Kumar · Jul 7, 2012 · Viewed 11.7k times · Source

I have a problem with my contact form that I have made using HTML and PHP. When the user clicks submit it redirects to another page where the user gets the message, "Your message has been sent". It then automatically redirects to the home page. But when the user clicks the back button, the message appears again and the form is resubmitted. Consequently I get two identical messages sent to my email!

How can I fix this?

Answer

brezanac picture brezanac · Jul 7, 2012

Take a look at Preventing form resubmission and Prevent Back button from showing POST confirmation alert where you will find useful info how to make redirects which won't trigger form re-submission when the Back button is clicked.

Related questions

How to pass PHP array parameter to Javascript Function?

index.php <script type="text/javascript" src="javascript.js"> </script> <?php $movies = array("Bloodsport", "Kickboxer", "Cyborg", "Timecop", "Universal Soldier", "In Hell", "The Quest"); ?> <input type="submit" value="Test Javascript" onclick="showMovies(<?php …

Read More
How to call a PHP function on the click of a button

I have created a page called functioncalling.php that contains two buttons, Submit and Insert. I want to test which function is executed when a button gets clicked. I want the output to appear on the same page. So, I …

Read More
How to set HTTP header to UTF-8 using PHP which is valid in W3C validator?

I have several PHP pages echoing out various things into HTML pages with the following code. <meta http-equiv="Content-type" content="text/html; charset=utf-8" /> However, when I validate using the W3C validator it comes up with: The …

Read More