errors in code for AideAPI PHP class

There are a few errors in the PHP code you provide for the AideRSS API.
1) line 4 of function feed_id() should be: if(!isset($data['feed_id']))
2) line 5 of function feed_stats() should be: if(isset($data['error']))
3) line 16 of function entry_stats() should be : curl_setopt($curl, CURLOPT_POST, TRUE);
4) the AideException toString() function should be: return var_export($this->data);