PHP Caching

SQLite Cache (Default)

/tmp/flags.db

use FlagsGG\Client;
use FlagsGG\Cache\SQLiteCache;

$client = new Client();

// Custom path
$cache = new SQLiteCache('/path/to/cache.db');
$client = new Client($cache);

Redis Cache

For distributed applications or when you need shared cache across multiple servers:

use FlagsGG\Client;
use FlagsGG\Cache\RedisCache;

// Create and connect
$redisCache = new RedisCache();
$redisCache->connect(
    host: '127.0.0.1',
    port: 6379,
    password: 'your-password',  // optional
    database: 0
);

$client = new Client($redisCache);

Using an Existing Redis Instance

$redis = new Redis();
$redis->connect('127.0.0.1', 6379);

$redisCache = new RedisCache($redis, 'my_app:');  // optional key prefix
$client = new Client($redisCache);

Redis is useful when:

• Multiple application instances need to share flag state
• You already have Redis in your infrastructure
• You want faster reads than SQLite

Cache Comparison

Feature	SQLite	Redis
Persistent	Yes	Yes
Shared across instances	No	Yes
Requires extension	PDO	Redis
Setup complexity	None	Moderate