Hashes related================================hdel-Delete a hash keyhexists-check if the hash key exists Hget-get the value of a hash key hgetall-get a hash table of all keys and Valu Ehincrby-Adds an integer value to a key in the hash table hincrbyfloat-Adds a floating-point value to a key in the hash table Hkeys-Gets the number of keys in the hash table for all Keyhlen-ha tables Hmget-gets multiple keys in the hash table Value Hmset-Sets the value of multiple keys for the hash table Hset-sets a value for a key in the hash list hsetnx-sets a value for the key when there is no key in the hash table hvals-gets all the values in the hash tableHsetThe-----------------------------------sets a value for a key in the hash table. If the value already exists, return false parameter: Key Hash table name Hashkeyvalue return value: LONG If set successfully, returns 1 if key already exists, it is replaced with a new value and returns 0. Failure returns 0 Example: $redis->delete (' h ') $redis->hset (' h ', ' key1 ', ' hello '), $redis->hget (' h ', ' key1 '); $redis->hset (' h ', ' key1 ', ' plop '); $redis->hget (' h ', ' key1 ');hsetnx-----------------------------------when a key does not exist in the hash table, set a value parameter to the key: Key hashtable name Hashkeyvalue return value: BOOL: Successful return TRUE. Failed to return FALSE. Example: $redis->delete (' h ') $redis->hsetnx (' h ', ' key1 ', ' hello '), $redis->hsetnx (' h ', ' key1 ', ' world ');Hget-----------------------------------gets the value of a hash key. If the hash table does not exist or the corresponding key does not exist, return false parameter: Keyhashkey return value: STRING If the hash table does not exist or The expected key does not exist and returns false example: $redis->delete (' h ') $redis->hset (' h ', ' key1 ', ' hello '); $redis->hget (' h ', ' key1 ');Hlen-----------------------------------the number of keys in a table key: Key return value: The number of key in a LONG table. If the hash table does not exist, or if the value of the corresponding key is not a hash type, the return false example : $redis->delete (' h ') $redis->hset (' h ', ' key1 ', ' hello '), $redis->hset (' h ', ' Key2 ', ' plop '); $redis->hlen ( ' H ');Hdel-----------------------------------Delete a hash key. If the hash table does not exist or the corresponding key does not exist, return the false\ parameter: Keyhashkey return value: BOOL: TRUE returned successfully. Failed to return FALSE. Example: $redis->delete (' h ') $redis->hset (' h ', ' key1 ', ' hello '), $redis->hset (' h ', ' Key2 ', ' plop '); $redis Hset (' h ', ' Key2 ');Hkeys-----------------------------------get all key parameters in the hash table: Key:key return Value: array Example: $redis->delete (' h '), $redis->hset (' H ', ' A ', ' X '), $redis->hset (' h ', ' B ', ' Y '), $redis->hset (' H ', ' C ', ' Z '), $redis->hset (' h ', ' d ', ' t '); Var_dump ($ Redis->hkeys (' h ')); Output: Array (4) {[0]=> string (1) "A" [1]=> string (1) "B" [2]=> string (1) "C" [3]=> string (1) "D"} Order is randomhvals-----------------------------------get all the value parameters in the hash table: parameter: Key return value: array Example: $redis->delete (' h '), $redis->hset (' h ', ' a ', ' x '); $redis->hset (' h ', ' B ', ' Y '), $redis->hset (' H ', ' C ', ' Z '), $redis->hset (' h ', ' d ', ' t '); Var_dump ($redis- >hvals (' h ')); Output: Array (4) {[0]=> string (1) "X" [1]=> string (1) "Y" [2]=> string (1) "Z" [3]=> string (1) "T"} order is randomHgetall-----------------------------------get all the key and value examples in a hash table: $redis->delete (' h '); $redis->hset (' h ', ' a ', ' X '); $redis->hset (' h ', ' B ', ' Y '), $redis->hset (' H ', ' C ', ' Z '), $redis->hset (' h ', ' d ', ' t '); Var_dump ($redis, Hgetall (' h ')); Output: Array (4) {["a"]=> string (1) "X" ["B"]=> string (1) "Y" ["C"]=> string (1) "Z" ["D"]=> string (1) "T"} The order is random.hexists-----------------------------------Check the hash key for the existence of parameters: Keymemberkey return value: BOOL: There is a return true, there is no return false example: $redis->hset (' H ' A ', ' X '); $redis->hexists (' h ', ' a '); $redis->hexists (' h ', ' Nonexistingkey ');Hincrby-----------------------------------add an integer value parameter to a key in the hash table: Keymembervalue: (integer) returns the value of an integer that is incremented: an example of a value after a LONG increase: $redis- >delete (' h '); $redis->hincrby (' h ', ' X ', 2); $redis->hincrby (' h ', ' X ', 1);hincrbyfloat-----------------------------------Add a floating-point numeric parameter to a key in the hash table: Keymembervalue: (float) The value of the floating-point value to increment: an example of an increment of float: $redis- >delete (' h '); $redis->hincrbyfloat (' h ', ' X ', 1.5); $redis->hincrbyfloat (' h ', ' X ', 1.5); $redis Hincrbyfloat (' h ', ' X ',-3.0);Hmset-----------------------------------set the value parameter for multiple keys for a hash table: Keymembers:key→value array return value: BOOL Example: $redis->delete (' User : 1 '); $redis->hmset (' user:1 ', Array (' name ' = ' Joe ', ' salary ' = + 2000));Hmget-----------------------------------get an example of the value of multiple keys in a hash table: $redis->delete (' h '); $redis->hset (' h ', ' field1 ', ' value1 $redis->hset (' h ', ' field2 ', ' value2 '); $redis->hmget (' h ', Array (' field1 ', ' field2 '));
Redis-php-hash table-related APIs
