PHP & Javascript.

[Anon]

Hello all, I'm using PHP and I need to access a Javascript variable. Now, I've been through the PHP documentation and I can't find any ways to access that darn variable that I need. I'm able to send a PHP variable to a Javascript function but how can I do the contrary? Hope somebody out there will be able to help me out...!

Cyberdrek
[e-mail]

[Anon]

ok well since the php is run as the page starts up you will need to reload the page to send the javascript to php, so you can whenever they do an action that would require the javascript var to be passed.
hmm maybe something like if you have a form
<form name=fred>

<input type=hidden name=whatever>

</form>

In javascript you can have a function run when the page needs to send the js value to php just use a function to give that var the value so like if they submit or something have a function set form.whatever.value='thevalue you want to send' then that value will be as whatever and be passed to php. I always need references to write js so that syntax is probably wrong go check out www.webmonkey.com js tutorial they have some good form changing value stuff

but jist, use a function to set the value of the tag or something and then when it goes off to the next php page it will be there.

Hope this will help i know it may not be the code and answer right here, but i think this could be a solution.

Good luck
ryan

[Anon]

That's not what I meant. I have a javascript variable that I need to pass to PHP not the contrary and btw, I'm a fairly good JS coder myself so there's no need for the www.webmonkey.com... Also, what I need is simply a way to be able to access a JS variable IN PHP. Not the OPPOSITE. with that said, maybe I can explain myself in a different manner. I need to modify a CSS property using PHP, is there a way to do that?

Cyberdrek
[e-mail]

[Anon]

Alrighty well to access a javascript variable in PHP you will need to be switching a page or refreshing that page, it must be passed. So you could use that javascript in php if you pass the variable in a from tag or have it on the end of a url or something.

BUT maybe this will give you an idea on how to change your CSS values. PHP will only be able to set that once the page is loaded so you can actually use php to write your CSS. Otherwise if you want changes while the page is already loaded you will use js.

so when you get to the style part you can go
<?
print ".whatever\n";
print "{";
print "color:$variable";
print "}";
?>

if you were wanting to change a color thoughout.. but only once the page is initialled loaded.

I hope I am addressing the problem correctly sorry for me trying to explain it at a low level even if im talking to a genious I still write like this so my thoughts can me interpreted as easy as possible.