morozovsk\websocket\GenericEvent::_readFromBuffer PHP Method

    protected function _readFromBuffer($connectionId)
    {
        $data = '';
        if (false !== ($pos = strpos($this->_read[$connectionId], self::SOCKET_MESSAGE_DELIMITER))) {
            $data = substr($this->_read[$connectionId], 0, $pos);
            $this->_read[$connectionId] = substr($this->_read[$connectionId], $pos + strlen(self::SOCKET_MESSAGE_DELIMITER));
        }
        return $data;
    }