Call to a member function on a non-object in PHP - php

Question

I am trying to modify a class that I found that is a Steam API class. I want it to work with codeigniter. I keep getting the error in the question title when I call the getProfileData function. Not sure why it's happening. Here is the code:
The library:
<?php
// Disable XML warnings to avoid problems when SteamCommunity is down
libxml_use_internal_errors(true);
// Use SteamUtility to fetch URLs and other stuff
require_once 'SteamUtility.php';
/**
* SteamUser - Representation of any Steam user profile
*
* #category SteamAPI
* #copyright Copyright (c) 2012 Matt Ryder (www.mattryder.co.uk)
* #license GPLv2 License
* #version v1.3
* #link https://github.com/MattRyder/SteamAPI/blob/master/steam/SteamUser.php
* #since Class available since v1.0
*/
class SteamUser {
private $userID;
private $vanityURL;
private $apiKey;
public $info;
/**
* Constructor
* #param mixed $id User's steamID or vanityURL
* #param string $apiKey API key for http://steamcommunity.com/dev/
*/
/**
* GetProfileData
* - Accesses Steam Profile XML and parses the data
*/
function __construct($params){
$userId = $params['userId'];
$this->CI =& get_instance();
$this->CI->load->config('steam');
if(empty($userId)) {
echo "Error: No Steam ID or URL given!", PHP_EOL;
return NULL;
}
if(is_numeric($userId)) {
$this->userID = $userId;
}
else {
$this->vanityURL = strtolower($userId);
}
$this->apiKey = $this->CI->config->item('api_key');
}
function getProfileData() {
$info = array();
//Set Base URL for the query:
if(empty($this->vanityURL)) {
$base = "http://steamcommunity.com/profiles/{$this->userId}/?xml=1";
} else {
$base = "http://steamcommunity.com/id/{$this->vanityURL}/?xml=1";
}
try {
$content = SteamUtility::fetchURL($base);
if ($content) {
$parsedData = new SimpleXMLElement($content);
} else {
return null;
}
} catch (Exception $e) {
//echo "Whoops! Something went wrong!\n\nException Info:\n" . $e . "\n\n";
return null;
}
if(!empty($parsedData)) {
$info['steamID64'] = (string)$parsedData->steamID64;
$info['steamID'] = (string)$parsedData->steamID;
$info['stateMessage'] = (string)$parsedData->stateMessage;
$info['visibilityState'] = (int)$parsedData->visibilityState;
$info['privacyState'] = (string)$parsedData->privacyState;
$info['avatarIcon'] = (string)$parsedData->avatarIcon;
$info['avatarMedium'] = (string)$parsedData->avatarMedium;
$info['avatarFull'] = (string)$parsedData->avatarFull;
$info['vacBanned'] = (int)$parsedData->vacBanned;
$info['tradeBanState'] = (string)$parsedData->tradeBanState;
$info['isLimitedAccount'] = (string)$parsedData->isLimitedAccount;
$info['onlineState'] = (string)$parsedData->onlineState;
$info['inGameServerIP'] = (string)$parsedData->inGameServerIP;
//If their account is public, get that info:
if($info['privacyState'] == "public") {
$info['customURL'] = (string)$parsedData->customURL;
$info['memberSince'] = (string)$parsedData->memberSince;
$info['steamRating'] = (float)$parsedData->steamRating;
$info['hoursPlayed2Wk'] = (float)$parsedData->hoursPlayed2Wk;
$info['headline'] = (string)$parsedData->headline;
$info['location'] = (string)$parsedData->location;
$info['realname'] = (string)$parsedData->realname;
$info['summary'] = (string)$parsedData->summary;
}
//If they're in a game, grab that info:
if($info['onlineState'] == "in-game") {
$info['inGameInfo']['inGameInfo'] = array();
$info['inGameInfo']["gameName"] = (string)$parsedData->inGameInfo->gameName;
$info['inGameInfo']["gameLink"] = (string)$parsedData->inGameInfo->gameLink;
$info['inGameInfo']["gameIcon"] = (string)$parsedData->inGameInfo->gameIcon;
$info['inGameInfo']["gameLogo"] = (string)$parsedData->inGameInfo->gameLogo;
$info['inGameInfo']["gameLogoSmall"] = (string)$parsedData->inGameInfo->gameLogoSmall;
}
//Get their most played video games:
if(!empty($parsedData->mostPlayedGames)) {
$info['mostPlayedGames'] = array();
$i = 0;
foreach ($parsedData->mostPlayedGames->mostPlayedGame as $mostPlayedGame) {
$info['mostPlayedGames'][$i] = new stdClass();
$info['mostPlayedGames'][$i]['gameName'] = (string)$mostPlayedGame->gameName;
$info['mostPlayedGames'][$i]['gameLink'] = (string)$mostPlayedGame->gameLink;
$info['mostPlayedGames'][$i]['gameIcon'] = (string)$mostPlayedGame->gameIcon;
$info['mostPlayedGames'][$i]['gameLogo'] = (string)$mostPlayedGame->gameLogo;
$info['mostPlayedGames'][$i]['gameLogoSmall'] = (string)$mostPlayedGame->gameLogoSmall;
$info['mostPlayedGames'][$i]['hoursPlayed'] = (string)$mostPlayedGame->hoursPlayed;
$info['mostPlayedGames'][$i]['hoursOnRecord'] = (string)$mostPlayedGame->hoursOnRecord;
$info['mostPlayedGames'][$i]['statsName'] = (string)$mostPlayedGame->statsName;
$i++;
}
}
//Any weblinks listed in their profile:
if(!empty($parsedData->weblinks)) {
$this['weblinks'] = array();
$i = 0;
foreach ($parsedData->weblinks->weblink as $weblink) {
$info['weblinks'][$i]['title'] = (string)$weblink->title;
$info['weblinks'][$i]['link'] = (string)$weblink->link;
$i++;
}
}
//And grab any subscribed groups:
if(!empty($parsedData->groups)) {
$this->groups = array();
$i = 0;
foreach ($parsedData->groups->group as $group) {
$info['groups'][$i] = array();
$info['groups'][$i]['groupID64'] = (string)$group->groupID64;
$info['groups'][$i]['groupName'] = (string)$group->groupName;
$info['groups'][$i]['groupURL'] = (string)$group->groupURL;
$info['groups'][$i]['headline'] = (string)$group->headline;
$info['groups'][$i]['summary'] = (string)$group->summary;
$info['groups'][$i]['avatarIcon'] = (string)$group->avatarIcon;
$info['groups'][$i]['avatarMedium'] = (string)$group->avatarMedium;
$info['groups'][$i]['avatarFull'] = (string)$group->avatarFull;
$info['groups'][$i]['memberCount'] = (string)$group->memberCount;
$info['groups'][$i]['membersInChat'] = (string)$group->membersInChat;
$info['groups'][$i]['membersInGame'] = (string)$group->membersInGame;
$info['groups'][$i]['membersOnline'] = (string)$group->membersOnline;
$i++;
}
}
}
return $info;
}
My model where I call it:
function retrieve($member_id = 0){
$info = array();
$this->db->select('memberId AS id, facebookId, steamId, userName, emailAddress, dateJoined, dateBorn')
->from('members')
->where('memberId', $member_id)
->limit(1);
if($query = $this->db->get()){
if($query->num_rows() > 0){
$member = $query->row_array();
var_dump($member);
$info = $member;
if($member['steamId'] != ''){
$this->load->library('SteamUser', array('userId' => $member['steamId']));
$steam = $this->SteamUser->getProfileData();
$info['steam'] = array(
'id' => $member['steamId'],
'avatar' => $steam['avatarIcon']
);
}
}
}
$this->info = $info;
}
Dumping the $member variable returns this:
array (size=7)
'id' => string '11' (length=2)
'facebookId' => string '' (length=0)
'steamId' => string 'STEAM_0:1:000000000' (length=17)
'userName' => string 'John Smith' (length=18)
'emailAddress' => string '' (length=0)
'dateJoined' => string '2015-09-23 19:38:17' (length=19)
'dateBorn' => string '0000-00-00 00:00:00' (length=19)

Answer 1

Try these methods
print_r($member['steamId']); to check data is empty or not.
If you passing data as objective array, then you need to access data with pointing [0],
ex: $this->SteamUser->getProfileData($member[0]['steamId']);
Check aging with print_r
print_r($member[0]['steamId']);
So final code will be
print_r($member['steamId']);//check data exist
print_r($member[0]['steamId']);//check data exist
if($member['steamId'])
{
$this->load->library('SteamUser');
$this->SteamUser->getProfileData($member['steamId']);
$steam = array('id' => $member['steamId'], 'avatar' => $this->SteamUser->avatarIcon);
$info = array_merge($info, $steam);
}

Answer 2

Apparently, when you load a class with CodeIgniter, the name of the object that is given is all lower case. So I was loading $this->SteamUser->getProfileData() when I should have been doing it like $this->steamuser->getProfileData().