Updating PHP variable OnChange

marek9999

HI I am pretty new to PHP and am having a major proble. I want to update a PHP variable with the most current selection for a drop down medu. I can get the initial value with no problem but how do I update it once it changes. There is no form to be submitted that would be easy. I though that maybe I could do it with OnCange but can't figure out a way to do it. My code is below. Thanks in advance for your help.
marek

<option value="" SELECTED>I am not sharing a room</option>
<option value="SpouseShare" <?if ($ShareCode == "SpouseShare") { echo "SELECTED";}?>>Sharing a room with a spouse</option>
<option value="ColleagueShare" <?if ($ShareCode == "ColleagueShare"){ echo "SELECTED";}?>>Sharing a room with a colleague</option>
</select>

thorpe

Php runs on the server, while the onChange event is client side. You'd need to submit your value back to the server using a form.

marek9999

I want to update the value of $SharedCode as people change it and I will then process it at a different page sending it there through a URL HREF, is there a way for me to look up a current value of that drop down so that I can write a script which would update my variable?
thanks
for your help

sapoxgn

You will need javascript for it..

I think that this post on my blog can help ya:

http://yacoding.blogspot.com/2005/11/using-javascript-onchange-with-php.html