处理用户在php中关闭浏览器的情况

Question

I have a buy.php page where user selects a product, enters some data like his name, address etc. Next he clicks on the "Buy" button to move to the Payment Gateway site for inputting his Credit Card no + CVV no etc. And at this point, without clicking on the 'Pay' button on this page, he closes the browser or his Computer gets switched off. This Transation ID is saved in Session.

How to track this situation and save it as "User Aborted" against his transaction ID in the Database in PHP?

Answer 1

You can't handle browser events (which is client-side) via php (server-side)

Use jQuery function .unload() which is supposed to be triggered on browser window closing

Documentation: http://api.jquery.com/unload/

Note: Nothing can take care about situation when Client Computer goes power-off instantly (not using Start > Switch Off or similar OS feature)

Note 2: Nothing in webpage can take care about crashed or killed browser