';
system ('find ./ -name \*.php -exec grep -Hl `whoami`_ {} \;');
echo 'Done.';
} elseif ($_POST[d] == "all") {
echo 'Finding all files that use the users username_.
';
system ('find ./ -type f -exec grep -Hl `whoami`_ {} \;');
echo 'Done.';
} else {
?>