[RESOLVED] JS + PHP

[Aorel]

Hi all,

How can I pass vars from JS to PHP?

Thanks,
A.O

[reddrum]

I usually set the value as hidden form data like
var frmdata = 10;
document.form.element_name.value = frmdata;
Then you can post to php. Or you could set a cookie.

[Aorel]

But,

I have a JS script as a separate js file and I want to pass the vars from this script to a php page.

Example:
doc.js gets user screen size and puts the data in vars
doc.php get the vars from the js data

Thanks,
A.O

[Piranha]

As you probably understand there is no simple way.

PHP is run on the server, then a page is sent to the client. There JS is run.

So there is no natural or easy way to pass a JS variable to PHP. You can do as reddrum suggests, or you can use AJAX. AJAX would probably fit you better in this case.

[reddrum]

javascript
setCookie("var_name", var_value);

php
$js_var = $_COOKIE['varname'];

[Aorel]

Thanks reddrum,

Got it via cookie and it works just great :-)

[bradgrafelman]

Don't forget to mark this thread resolved.