Finding keys in a Redis database matching a certain pattern is useful when you want to perform a mass operation on these keys, or need to filter keys based on specific criteria.
Let's assume we have a few keys such as user:1, user:2, user:3 and we're looking for all keys starting with 'user'.
The Predis client library can be used to connect PHP with Redis:
require "vendor/autoload.php"; Predis\Autoloader::register(); $client = new Predis\Client(); $keys = $client->keys('user:*'); print_r($keys);
The keys
method of the Predis client object is used to fetch all keys that match a given pattern. The '*' character is a wildcard that matches any sequence of characters.
Dragonfly is fully compatible with the Redis ecosystem and requires no code changes to implement.