How to detect when user press reload.

[Anon]

Hi, I was wondering is there a way to detect
when user press a reload(refresh) button in the browser.

THank You

[e-mail]

[[deleted]]

What would you need this for?

[Anon]

I'm also interested on how to detect not just the reload button but other browser buttons as well.

[kosmidd]

i don't know if this will help you but...:
just in the body tag onload="YOUR_FUNTCION"
and in the head
<script>
<!--
function YOUR_FUNCTION(){
window.location="/YOUR_PHP_SCRIPT"
--//>
</script>

just work around with that.

ELOY:
u can just call the php scripts u need with javascript depenting on what button is pressed. Contact me if you can't find out how.

[amcgrath]

I'm not a javascript expert by any stretch, but your example would run the script each time the page was loaded, including the first, which is technically not a refresh.

What I would do is check for a variable. If it's not present, set it as a hidden input variable on the form. If it is there, then you can be reasonably sure that the page was refreshed.

ex: if (!isset($chk_var)) {

do your thing...
$chk_var = "yes";

}
in html: <input type="hidden" name="chk_var" value="<?= $chk_var ?>">

[Anon]

Got it. But how would I detect if the "back" button for example is pressed?

[[deleted]]

You probably can't.

And for the life of me I can't figure out why you'd ever want to do that anyway.

[Anon]

You would want to detect a reload for tracking purposes. It can be usefull to know true page views and page views logged from reloading the page.