How can i convert this to FBSDK5

[wanttolearn143]

Hi I need help, I'd like to update this code to FBSDK v5 ask its not working anymore

`<?php require '../config.php'; require 'lib/facebook/facebook.php';

$facebook = new Facebook(array( 'appId' => $appID, 'secret' => $appSecret, ));

//get the user facebook id
$user = $facebook->getUser();

if($user){

try{
    //get the facebook user profile data
    $getUserInfo = $facebook->api('/me');
    $params = array('next' => $base_url.'logout.php');
    //logout url
    $logout =$facebook->getLogoutUrl($params);
}catch(FacebookApiException $e){
    error_log($e);
    $user = NULL;
}       

}

if(!empty($user)){ //login url

$userInfo = $getUserInfo;
$_SESSION['ses_id'] = md5(microtime());
$buid = $userInfo['id'];
$user = mysql_query("SELECT * FROM `scgfx_user_accounts` WHERE `fbid`='".$buid."'");

if(mysql_num_rows($user)>0) {
    $userdata = mysql_fetch_assoc($user);

    if($userdata['last_request_time']<=(time()-10800)) {
        mysql_query("INSERT INTO `scgfx_chats` VALUES('','Welcome back to ".GLOBAL_NAME." <b>".$userdata['fbname']."</b>','0','global','".time()."')");
    }
    mysql_query("UPDATE `scgfx_user_accounts` SET 
                                        `gender`            =   '".$userInfo['gender']."',
                                        `ses_id`            =   '".$_SESSION['ses_id']."',
                                        `active`            =   '1',
                                        `sign_time`         =   CURRENT_TIMESTAMP,
                                        `last_request_time` =   '".time()."',
                                        `ip_address`        =   '".$_SERVER['REMOTE_ADDR']."' WHERE `fbid`='".$userInfo['id']."'");

} else {
    mysql_query("INSERT INTO `scgfx_user_accounts` VALUES('',
                                        '".$userInfo['id']."',
                                        '".$userInfo['name']."',
                                        '".$userInfo['gender']."',
                                        '0',
                                        '".$_SESSION['ses_id']."',
                                        '1',
                                        CURRENT_TIMESTAMP,
                                        '".time()."',
                                        '".$_SERVER['REMOTE_ADDR']."','0','0')");
    mysql_query("INSERT INTO `scgfx_chats` VALUES('','We have a new member :) Welcome to ".GLOBAL_NAME." <b>".$userInfo['name']."</b>!<br/>Enjoy your stay!','0','global','".time()."')");
}

if(isset($_SESSION['ses_id'])) {
    $getUserInfo = mysql_query("SELECT * FROM `scgfx_user_accounts` WHERE `ses_id`='".$_SESSION['ses_id']."'");
    if(mysql_num_rows($getUserInfo)>0) {
        while($data=mysql_fetch_assoc($getUserInfo)) {
            $_SESSION['fbid'] = $data['fbid'];
            $_SESSION['name'] = $data['fbname'];
            $_SESSION['gender'] = $data['gender'];
            $_SESSION['acctype'] = $data['acctype'];
            $_SESSION['points'] = $data['points'];
        }
    } else {
                die("Invalid Session ID");
    }
?>
    <script>

    window.close();
    window.opener.location.reload();
    </script>
    <?php
}

}

else { $loginurl = $facebook->getLoginUrl(array( 'scope' => 'email,read_stream,offline_access,publish_stream,user_status,user_photos', 'display'=>'popup' )); header('Location: '.$loginurl); } ?>

`