Quick Facebook Integration Question

[eluser]Unknown[/eluser]
I hope I am posting this in the right area. I am new to CodeIgniter and I just want to get some advice. I am working on a small Facebook app that will basically get and post data to a users fan page. I couldn't get the Facebook SDK working correctly so I decided to build a quick library. Basically I want to know if I am going to have any problems doing it this way and to see if anyone has any suggestions on my code. It is pretty raw at the moment but I want to make sure I am on the right path. Thanks for your help in advance.

Code:

<?php if (!defined('BASEPATH')) exit('No direct script access allowed');

class My_Fb
{
    
    var $BaseUrl     = 'http://someurl.com';
    var $AppID         = 'xxxxxxxxxxxxxxxxxxx';
    var $Secret     = 'xxxxxxxxxxxxxxxxxxxxxxxxx';
    var $Scope         = 'email,read_insights,read_stream,publish_stream,read_mailbox,ads_management,xmpp_login,user_about_me,user_activities,user_birthday,user_education_history,user_events,user_groups,user_hometown,user_interests,user_likes,user_location,user_notes,user_online_presence,user_photo_video_tags,user_photos,user_relationships,user_religion_politics,user_status,user_videos,user_website,user_work_history,read_friendlists,read_requests,offline_access,create_event,rsvp_event,publish_checkins,manage_pages';
    
    function __construct()
    {        
        $_GET['code'] = "";
        parse_str($_SERVER['QUERY_STRING'], $_GET);
        
        $ci = & get_instance();
        
        // MAKE SURE WE HAVE PERMISSION
        $fb_code = $ci->session->userdata('fb_code');
        if(!$ci->session->userdata('fb_code'))
        {
            if( isset($_GET['code']) ){
                $ci->session->set_userdata('fb_code', $_GET['code']);                
            }else{
                redirect('https://graph.facebook.com/oauth/authorize?client_id='.$this->AppID.'&redirect;_uri='.$this->BaseUrl.'&scope;='.$this->Scope, 'refresh');
                die();
            }
        }
    }
    
    function getToken(){
        
        $ci = & get_instance();
        
        $TempCode = $ci->session->userdata('fb_code');
        
        // MAKE SURE WE HAVE ACCESS TOKEN
        $ch = curl_init('https://graph.facebook.com/oauth/access_token?client_id='.$this->AppID.'&redirect;_uri='.$this->BaseUrl.'&client;_secret='.$this->Secret.'&code;='.$TempCode);
        curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 2);                 // wait 2 miliseconds for connection
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);                 // do not output to curl_exec()
        
        $FbTokenFull = curl_exec($ch);                    // execute the cURL session
        curl_close($ch);
        
        //$FbTokenFull = @file_get_contents('https://graph.facebook.com/oauth/access_token?client_id='.$this->AppID.'&redirect;_uri='.$this->BaseUrl.'&client;_secret='.$this->Secret.'&code;='.$TempCode);
                    
        $AccessToken = str_replace('access_token=', '', $FbTokenFull);
        return $AccessToken;
    }
    
    function api($Meth, $Obj, $Par=''){
        
        // GET TOKEN
        $TempToken = $this->getToken();
        
        if(!$TempToken){
            return "Sorry! Facebook's api failed.";
            exit;
        }
        
        if($Meth == "post"){
            $ch = curl_init();
            $url = 'https://graph.facebook.com'.$Obj;
            curl_setopt($ch, CURLOPT_URL,$url);
            curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
            curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
            curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2);
            curl_setopt($ch, CURLOPT_POST, 1);
            
            $Attach['access_token'] = $TempToken;
            if(is_array($Par)){
                foreach($Par as $Key=>$Value){
                    $Attach[$Key] = $Value;
                }
            }
            curl_setopt ($ch, CURLOPT_POSTFIELDS, $Attach);
            
        }else{
            
            $EncodePar = http_build_query($Par);
            
            $ch = curl_init('https://graph.facebook.com'.$Obj.'?access_token='.$TempToken.'&'.$EncodePar);
            echo 'https://graph.facebook.com'.$Obj.'?access_token='.$TempToken.'&'.$EncodePar;
            curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 2);                 // wait 2 miliseconds for connection
            curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);                 // do not output to curl_exec()
        }
        
        $rsp = json_decode(curl_exec($ch));                                // execute the cURL session
        curl_close($ch);
        
        return objectToArray($rsp);
    }
    
}