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redis PUBLISH command

Chinese translationRecent Updates：2018-05-16 14:22:49

UK[ˈpʌblɪʃ] US[ˈpʌblɪʃ]

vt.& vi. Publish, issue; publish, announce (marriage, etc.); announce, promulgate; publish... the work of...

Third person Singular: publishes Present participle: publishing Past tense: published Past participle: published

redis PUBLISH command Video explanation

redis PUBLISH command syntax

Function:Send information message to the specified channel channel.

Syntax: PUBLISH channel message

Available versions:>= 2.0.0

Time complexity : O(N M), where N is the number of subscribers to the channel channel, and M is the number of clients using subscribed patterns.

Return: The number of subscribers who received the message.

redis PUBLISH command example

# 对没有订阅者的频道发送信息
redis> publish bad_channel "can any body hear me?"
(integer) 0
# 向有一个订阅者的频道发送信息
redis> publish msg "good morning"
(integer) 1
# 向有多个订阅者的频道发送信息
redis> publish chat_room "hello~ everyone"
(integer) 3

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