providercollection.php

См. документацию.

<?php
 
namespace Bitrix\Socialnetwork\Internals\Space\Counter;
 
class ProviderCollection implements \IteratorAggregate, \Countable
{
    private array $providers;
 
    public function __construct(ProviderInterface ...$providers)
    {
        $this->providers = $providers;
    }

    public function getIterator(): \ArrayIterator
    {
        return new \ArrayIterator($this->providers);
    }
 
    public function add(ProviderInterface $provider): void
    {
        $this->providers[] = $provider;
    }
 
    public function isEmpty(): bool
    {
        return empty($this->providers);
    }
 
    public function count(): int
    {
        return count($this->providers);
    }
}