Appending to the end of a file

Ok heres my situation, I am trying to append to the end of a with a form, but when it appends it just appends it onto my last line of my file which already has data on it but i want it to go one more line down and then append. How can i do this? Here is my function and some code i am using: <? function append_file($filename, $contents) if ($fp = fopen($filename, "a")) fwrite ($fp, stripslashes($contents)); fclose($fp); return 1; } else { return 0; } }; if ($submitButton == "appendfile") $rs = append_file( "$page", "$test", " "); echo "<a href=\"$page\">$page</A><BR> "; ?>