Error when archiving a chat

So the section pointing to /home/justin/logs should probably be relative or a different directory.

while ($message = db_fetch_object($result)) {
file_put_contents('/home/justin/logs/chat.debug', "$last_cmid: " . print_r($message, TRUE), FILE_APPEND);
$messages[] = $message;
}

while ($message = db_fetch_object($result)) {
    file_put_contents('/home/justin/logs/chat.debug', "$last_cmid: " . print_r($message, TRUE), FILE_APPEND);
    $messages[] = $message;
  }