channel(); $channel->queue_declare('hello', false, true, false, false); echo " [*] Waiting for messages. To exit press CTRL+C\n"; $callback = function ($msg) { echo ' [x] Received ', $msg->body, "\n"; }; $channel->basic_consume('hello', '', false, true, false, false, $callback); while ($channel->is_open()) { $channel->wait(); } return 0; } }