Installing iFlyChat with Symfony - php

Question

I'm trying to run iFlyChat with Symfony using their PHP client https://iflychat.com/installation/php-chat-client which I have successfully install using composer.
I've created an extension for the code:
<?php
namespace DW\UserBundle\Twig;
use DW\UserBundle\Service\UserService;
use Iflylabs\iFlyChat;
class ChatExtension extends \Twig_Extension
{
/**
* #var UserService
*/
private $userService;
/**
* #var string
*/
private $appId;
/**
* #var string
*/
private $apiKey;
/**
* #param UserService $userService
* #param string $appId
* #param string $apiKey
*/
public function __construct(UserService $userService, string $appId, string $apiKey)
{
$this->userService = $userService;
$this->appId = $appId;
$this->apiKey = $apiKey;
}
/**
* #return array
*/
public function getFunctions()
{
return [
new \Twig_SimpleFunction("chat", [$this, "chat"])
];
}
public function chat()
{
$iflyChat = new iFlyChat($this->appId, $this->apiKey);
echo $iflyChat->getHtmlCode();
}
/**
* #return string
*/
public function getName()
{
return 'chat_extension';
}
}
but I get an error:
Attempted to load class "iFlyChat" from namespace "IFlyLabs". Did you
forget a "use" statement for another namespace?
Do I need to do something with the autoloader? I've been looking into registerPrefixes here but that doesn't exist anymore for Symfony3.2.

Answer 1

Have a look at vendor/composer/autoload_psr4.php so you can make sure there is an autoload namespace generated for IflyChat.
If there isn't you can execute:
composer dump-autoload
to force composer to regenerate the autoload for your dependencies.

Answer 2

It's because the file name does not match class name, it's installed as iflychat.php while the class is iFlyChat. Renaming the file to iFlyChat.php works.