Change to:
echo "Info: <input type=\"text\" name=\"titel\"> value=\"" . $row['titel'] . "\">" . "<br />";
You're missing a "
after a \"
.
I would prefer to write it as:
echo 'Info: <input type="text" name="titel"> value="' . $row['titel'] . '"><br />';
Now you don't need so many escapes.