PHPDaemon\IPCManager\IPCManager::sendPacket PHP Method

    public function sendPacket($packet = null)
    {
        if ($this->conn && $this->conn->isConnected()) {
            $this->conn->sendPacket($packet);
            return;
        }
        $cb = function ($conn) use($packet) {
            $conn->sendPacket($packet);
        };
        if (!$this->conn) {
            $this->conn = new WorkerConnection(null, null, null);
            $this->conn->connect($this->socketurl);
        }
        $this->conn->onConnected($cb);
    }