Mimic Javascripts onclick

[webdogjcn]

I want a user to simply click a button and it will modify a value within a database. So I though of this:
[code]<a href='' onclick="<?php etc. ?>"><img src='' border=0></a>[/code]

Now, I understand that PHP is server side and Javascript is client side, but is there someway to mimic this function with PHP or pass the information from client side to a server side php script? I know it can be done because I've seen similar things on other websites.

[ryanlwh]

if you don't mind the page to be reloaded, then you can just create a url with the appropriate query string and then redirects back to the same page. if you don't like the page to reload, you can try AJAX, or open a new window that does this and then closes itself when done.

[webdogjcn]

wow, I didn't think of that...thanks so much