Update in 2018: I just got some points for this old answer, and just wanted to add that the best solution would be to make the operation idempotent so that duplicate submissions are harmless.. Eg, if the form creates an order, put a unique ID in the form. The first time the server sees an order creation request with that id, it should create it and respond "success". How to prevent multiple form submissions in PHP? Blow is the completed sample script for preventing multiple form submissions in PHP. CodeIgniter 3 CodeIgniter Helper Convert CORS css Eloquent es6 Express Express.js Facebook How to htaccess Intermediate JavaScript jQuery Laravel Laravel Submitting AJAX Forms with JQuery. Chris Sevilleja (@chrisoncode) January 08, Get all of the data from our form using jQuery; Submit using AJAX (we'll go through a few ways) Dev tutorials explaining the code and the choices behind it all. Two weeks back I had posted "Facebook like multi Toggle Comment Box with jQuery and PHP" I received emails from my readers that asked to me how to submit multiple forms with jQuery and ajax. So in this tutorial I implemented. Download the script just you have to change the database details. Take a look live demo We all know the good old "disable the submit button" trick but what are the best ways to handle multiple submissions server side? I have an application where it is absolutely critical that a form o Stack Overflow. How to prevent multiple form submission on multiple clicks in PHP. 15. Here I will explain how to use jQuery to disable submit button after first click to avoid duplicate or multiple form submission or jQuery disable submit button after click to avoid duplicate form In this tutorial , I will show you, how to prevent form submission using jQuery. HTML file It will lead duplicate form to submit. To overcome this problem, we are avoiding double submits using jQuery.