In PHP applications, you might want to identify the type of data stored at a specific key in a Redis database. This is important when you want to apply specific operations that only work on certain data types.
First, let's connect to the Redis server:
$redis = new Redis(); $redis->connect('127.0.0.1', 6379);
You can get the data type of a key using the
type method. Here's how:
$keyType = $redis->type('mykey');
type() function will return an integer representing the following types:
REDIS_SET, etc., and use them in your code.
Not handling the scenario where the key doesn't exist. If a non-existent key is provided, Redis will return
0. It’s advisable to handle this case explicitly in your code.
Q: Will getting the type of a key affect its time to live (TTL)?
A: No, getting the type of a key won't affect its TTL.