WRONGTYPE 针对持有错误类型值 php 的键的操作
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/37953019/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
WRONGTYPE Operation against a key holding the wrong kind of value php
提问by Trushar Narodia
Hi I am using Laravel with Redis .When I am trying to access a key by get method then get following error "WRONGTYPE Operation against a key holding the wrong kind of value"
嗨，我正在将 Laravel 与 Redis 一起使用。当我尝试通过 get 方法访问密钥时，出现以下错误“针对持有错误类型值的密钥的错误类型操作”
I am using following code to access the key value -
我正在使用以下代码访问键值 -
i use this code for get data from redis
我使用此代码从 redis 获取数据
$values = "l_messages";
$value = $redis->HGETALL($values);
print($value);
回答by Phoebe Li
Redis supports 5 data types. You need to know what type of value that a key maps to, as for each data type, the command to retrieve it is different.
Redis 支持 5 种数据类型。您需要知道一个键映射到什么类型的值，对于每种数据类型，检索它的命令是不同的。
Here are the commands to retrieve key value:
以下是检索键值的命令：
- if value is of type string -> GET
<key> - if value is of type hash -> HGETALL
<key> - if value is of type lists -> lrange
<key> <start> <end> - if value is of type sets -> smembers
<key> - if value is of type sorted sets -> ZRANGEBYSCORE
<key> <min> <max>
- 如果值是字符串类型 -> GET
<key> - 如果值的类型为 hash -> HGETALL
<key> - 如果值是列表类型 -> lrange
<key> <start> <end> - 如果值是类型集 -> smembers
<key> - 如果值是排序集类型 -> ZRANGEBYSCORE
<key> <min> <max>
Use the TYPEcommand to check the type of value a key is mapping to:
使用该TYPE命令检查键映射到的值的类型：
- type
<key>
- 类型
<key>
回答by advance512
This error means that the value indexed by the key "l_messages" is not of type hash, but rather something else. You've probably set it to that other value earlier in your code. Try various other value-getter commands, starting with GET, to see which one works and you'll know what type is actually here.
此错误意味着由键 "l_messages" 索引的值不是 type hash，而是其他类型。您可能已经在代码的早期将其设置为其他值。尝试各种其他的取值命令，从 GET 开始，看看哪一个有效，你就会知道这里实际上是什么类型。
