Can you pass a variable to PHP through Javascript

[Vitruvius]

I needed to pass a variable to PHP through Javascript. Does anyone have any ideas on how to do this?

Thanks

[Quevas]

PHP is server side, Javascript is client side.
So you can pass variables from PHP to Javascript but not the contrary.

Anyway you should try passing the js variable's value by URL or something like this, I think...

[barand]

Originally posted by Vitruvius
I needed to pass a variable to PHP through Javascript. Does anyone have any ideas on how to do this?

Thanks

create a hidden form field. Place a value in it from javascript and it will get submitted to your php script

hth

[driverdave]

How about

window.location = 'whatever.php?javascriptVar=' + myJavascriptVar;

The user has to leave the page, or you can use a frameset with an invisible frame, and set the invisible frame's window.location.

Or you can POST javascript variables with a form to a PHP page that doesn't spit headers out, so the user never really goes to that page (I'd have to look that one up.) I'm not sure if it doesn't spit headers, I think it sends headers that tell the browser that there is no data to see, or something along those lines.

[june3838]

<input type="button" name="s1" value="search" onclick="document.form1.action='show.php?opt='
+document.form1.opt.value;document.form1.submit()">

maybe this is what you want