redis transaction

key expires true if it does not expire false Mset (Redis version 1.1 or above only available) Assign values to multiple keys at the same time $redis->mset (Array (' key0 ' = ' value0 ', ' key1 ' = ' value1 ')); Multi, exec, discard Enter or exit Transaction mode Parameter optional Redis::multi or

Redis Research (10)-Redis transactions and survival time, redis transactions I. Transaction Overview Redis transactions are a collection of commands. A transaction is the smallest Execution Unit of

$ Redis-> setex ('key', 3600, 'value'); // sets key → value, with 1 h TTL.Setnx determines whether the data is repeated and the written value$ Redis-> setnx ('key', 'value ');$ Redis-> setnx ('key', 'value ');Delete deletes the value of a specified key.Returns the number of deleted keys (long integer)$ Redis-> delete (

is repeated and the written Value$ Redis-> setnx ('key', 'value ');$ Redis-> setnx ('key', 'value '); Delete deletes the value of a specified key.Returns the number of deleted keys (long integer)$ Redis-> Delete ('key1', 'key2 ');$ Redis-> Delete (Array ('key3', 'key4', 'key5 ')); TTLGet the survival time of a key Per

it finds that the current memory usage is already greater than or equal to MaxMemory, the expired portion of the cache is gone until memory usage is less than maxmemory. It is clear that this cache-free memory operation will affect the Redis Rt. During the peak of the message, the memory usage of the Redis instance has been maxmemory the additional wandering, resulting in the

subscriptions implement mail systems, senders (referred to as publishers in Redis terminology), and receivers (users) receive them. The link sent by this message is called a channel.The Redis client can subscribe to any number of channels.ExampleThe following example shows how to publish a user's conceptual work. In the following example, a client subscription is given a channel named RedischatRedis 127.0.

, write value$redis->setnx (' key ', ' value ');$redis->setnx (' key ', ' value ');Delete Deletes the value of the specified keyReturns the number of keys that have been deleted (long integers)$redis->delete (' Key1 ', ' key2 ');$redis->delete (Array (' Key3 ', ' key4 ', ' key5 '));TtlGet a key to the time of survivalP

the value of the specified keyReturns the number of keys that have been deleted (long integers)$redis->delete (' Key1 ', ' key2 ');$redis->delete (Array (' Key3 ', ' key4 ', ' key5 '));TtlGet a key to the time of survivalPersistRemove key for lifetime expirationIf the key expires true if it does not expire falseMset (Redis version 1.1 or above only available)Ass

the value of the specified keyReturns the number of keys that have been deleted (long integers)$redis->delete (' Key1 ', ' key2 ');$redis->delete (Array (' Key3 ', ' key4 ', ' key5 '));TtlGet a key to the time of survivalPersistRemove key for lifetime expirationIf the key expires true if it does not expire falseMset (Redis version 1.1 or above only available)Ass

', ' value ');Delete Deletes the value of the specified keyReturns the number of keys that have been deleted (long integers)$redis->delete (' Key1 ', ' key2 ');$redis->delete (Array (' Key3 ', ' key4 ', ' key5 '));TtlGet a key to the time of survivalPersistRemove key for lifetime expirationIf the key expires true if it does not expire falseMset (Redis version 1.

Requirepass beijing 3. enable authentication in redis. conf. Method 1: Auth beijing Method 2:./redis-cli-a beijing 4. add the following configuration in the redis. conf configuration file to bind redis to a single interface (but not only accept the data of this NIC ). Bind 127.0.0.1) 5. SSL proxy 6. disable the specif

timePersistRemove key that expires in lifetimeIf the key expires true if it does not expire falseMset (more than 1.1 Redis version can be used)Assigning multiple keys at the same time$redis-gt;mset (Array (' key0′=gt; ' value0′, ' key1′=gt; ' value1′));Multi, exec, discardEnter or exit Transaction modeParameter optional Redi