How to get all HMSET - Laravel Redis - laravel

Question

Hmset Example Screenshot
This is my demo hmset example, I try to get all hmset list by Redis::hgetall("hmset_demo:user_id:*"), but it return a empty array [].
How can I get this return:
[{
"id": "1",
"name": "name edited 1",
"description": "desc edited 1",
"avatar": "xxx 1"
},
{
"id": "1",
"name": "name edited 1",
"description": "desc edited 1",
"avatar": "xxx 1"
},
...
]
PS: I use the following code to insert:
Redis::hmset("hmset_demo:user_id:".$id, [
'id' => $id,
'name' => 'name edited '.$id,
'description' => 'desc edited'.$id,
'avatar' => 'xxx'.$id,
]);
I can get specific hmset data by this code:
$id = 1;
Redis::hgetall("hmset_demo:user_id:".$id);

Answer 1

You cannot use wildcards in key names.
Let's see an example. We store two hash type keys
127.0.0.1:6379> HSET hmset_demo:user_id:0 NAME PETER
127.0.0.1:6379> HSET hmset_demo:user_id:1 NAME GWEN
We can retrieve their value by its key
127.0.0.1:6379> HGETALL hmset_demo:user_id:0
1) "NAME"
2) "PETER"
127.0.0.1:6379> HGETALL hmset_demo:user_id:1
1) "NAME"
2) "GWEN"
But we cannot use wildcards with HGETALL command
127.0.0.1:6379> HGETALL hmset_demo:user_id:*
(empty array)
If you need to use wildcards to retrieve a lot of keys, you can use SCAN COMMAND
127.0.0.1:6379> SCAN 0 MATCH hmset_demo:user_id:* COUNT 10
1) "0"
2) 1) "hmset_demo:user_id:1"
2) "hmset_demo:user_id:0"
Iterate each element from the resulset and retrieve its values using HGETALL
There is no way to retrieve everything using just one Redis command
Also, HMSET command is deprecated. You should use HSET instead.