$pubsub->subscribe('notifications');
// Start processing the pubsup messages. Open a terminal and use redis-cli
// to push messages to the channels. Examples:
// ./redis-cli PUBLISH notifications "this is a test"
// ./redis-cli PUBLISH control_channel quit_loop
foreach ($pubsub as $message) {
switch ($message->kind) {
case 'subscribe':
echo "Subscribed to {$message->channel}\n";
break;
case 'message':
if ($message->channel == 'control_channel') {
if ($message->payload == 'quit_loop') {
echo "Aborting pubsub loop...\n";
$pubsub->unsubscribe();
} else {
echo "Received an unrecognized command: {$message->payload}.\n";
}
} else {
echo "Received the following message from {$message->channel}:\n", " {$message->payload}\n\n";
}
break;
}
}
// Always unset the pubsub context instance when you are done! The
// class destructor will take care of cleanups and prevent protocol
// desynchronizations between the client and the server.
unset($pubsub);
// Say goodbye :-)
$info = $redis->info();
print_r("Goodbye from Redis v{$info['redis_version']}!\n");
