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Many novices are not very clear about how to subscribe to publish and send SMS in batches in Redis. In order to help you solve this problem, the following editor will explain it in detail. People with this need can come and learn. I hope you can get something.

1 what is a redis subscription

Redis publish subscription (pub/sub) is a mode of message communication: the sender (pub) sends the message and the subscriber (sub) receives the message. Directly, you can understand that I followed you, you released information, articles, etc., I can receive it immediately.

2 where is the scenario of publishing and subscribing

For example, the following scenarios:

2.1 messages on a typical web page can be notified in real time

2.2 Real-time notification of inventory changes through redis subscriptions after an order is placed

2.3.When you need to do some functions such as sending email and logging, you can apply redis subscription, which will speed up the return time of the API.

3 how to realize real-time publish and subscribe with php

Now that you know what subscription and publishing scenarios are, let's take a look at how to implement publish and subscribe with php and redis

3.1 cli.php, which is the subscriber side code, the main note is that this code is placed under cli to execute php

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