src/IronMQ.php
public function getMessagePushStatuses($queue_name, $message_id)
    {
        $this->setJsonHeaders();
        $queue = rawurlencode($queue_name);
        $url = "projects/{$this->project_id}/queues/$queue/messages/{$message_id}/subscribers";
        $response = self::json_decode($this->apiCall(self::GET, $url));
        return $response->subscribers;
    }
public function getMessagePushStatuses($queue_name, $message_id)
    {
        $this->setJsonHeaders();
        $queue = rawurlencode($queue_name);
        $url = "projects/{$this->project_id}/queues/$queue/messages/{$message_id}/subscribers";
        $response = self::json_decode($this->apiCall(self::GET, $url));
        return $response->subscribers;
    }
Get Message's Push Statuses (for Push Queues only)

Example:
<code>
statuses = $ironmq->getMessagePushStatuses("test_queue", $message_id)
</code>

@param string $queue_name
@param string $message_id
@return array