URL get variable problem

Hi All, I have a php script which inserts into a database all the _GET variables. foreach ($_GET as $name => $value) { // insert into database } This works fine for a url like http://server/page.php?name1=value1&name2=value2 If I use a URL like http://server/page.php?test1.test.com=online All the dots ('.') in the name portion and changed to '_'. This does not happen if there are dots in the value portion of the url. Is this a apache thing or a php thing? Can I do something to fix it? Thanks Glenn