(PECL amqp >= Unknown)
AMQPExchange::setFlags — Set the flags on an exchange
$flags
   )Set the flags on an exchange.
flags
    
      A bitmask of flags. This call currently only considers the following flags: AMQP_PASSIVE, AMQP_PASSIVE.
     
    成功时返回 TRUE, 或者在失败时返回 FALSE.