// take the referer
$thereferer = strtolower($_SERVER['HTTP_REFERER']);
// see if it comes from google
if (strpos($thereferer,"google")) {
// delete all before q=
$a = substr($thereferer, strpos($thereferer,"q="));
// delete q=
$a = substr($a,2);
// delete all FROM the next & onwards
if (strpos($a,"&")) {
$a = substr($a, 0,strpos($a,"&"));
}
// we have the results.
$mygooglekeyword = urldecode($a);
}

