Top 4 subscriber open source projects

A PubSubHubbub subscriber module for PHP

Want to handle 100,000 messages in 90 seconds? Celery and Kombu are that awesome - Multiple publisher-subscriber demos for processing json or pickled messages from Redis, RabbitMQ or AWS SQS. Includes Kombu message processors using native Producer and Consumer classes as well as ConsumerProducerMixin workers for relay publish-hook or caching

A predictable state management library that helps implement the BLoC design pattern

Lightweight Component Model and Messaging Framework based on ØMQ