I want to know whether browser's back button is clicked or not?

After clicking browser's back button again data is getting inserted.

[Rose]

I am working in php. In my application user can post comment.once comment is posted, if user click on back button in the browser,same comment is again posted. Tried to unset the post array after insertation but not working as required. Is it possible to get the browser's back status in php or javascript to over come this problem?

[janharders]

the easiest thing to do is to add a check wether the insert was done already. doing it on the clientside with javascript is complicated because of different implementations in different browsers (that is, for example, opera does not honor no-cache-headers when using the back-button, while others do).

[daveVk]

If submit done via get method, change it to post method.

[Rose]

submit is done via post method.

[Rose]

problem got solved by checking insert done already.Thanks to all.