How can I set Redis key prefixes for sessions, cache, and queues separately in Laravel 12 (PHP 8.4)?

We’re running a Laravel 12 application (PHP 8.4) using Redis for sessions, cache, and queues — all within a single Redis database.

'redis' => [
    'client' => 'phpredis',
    'options' => [
        'cluster' => env('REDIS_CLUSTER', 'redis'),
        'prefix' => env('REDIS_PREFIX', 'site_'),
    ],

    'default' => [
        'host' => env('REDIS_HOST', '127.0.0.1'),
        'password' => env('REDIS_PASSWORD', null),
        'port' => env('REDIS_PORT', 6379),
        'database' => 0,
    ],

    'cache' => [
        'host' => env('REDIS_HOST', '127.0.0.1'),
        'database' => 0,
        'prefix' => 'site_cache_',
    ],

    'session' => [
        'host' => env('REDIS_HOST', '127.0.0.1'),
        'database' => 0,
        'prefix' => 'site_session_',
    ],

    'queue' => [
        'host' => env('REDIS_HOST', '127.0.0.1'),
        'database' => 0,
        'prefix' => 'site_queue_',
    ],
],

Our goal is to:

• Keep all data in the same Redis database
• Prevent key collisions
• Have clear prefixes like:
• site_cache_* for cache keys
• site_session_* for session data
• site_queue_* for queued jobs

However:

• The session keys don’t seem to respect the prefix defined in the database.php
• It’s unclear if Laravel’s Redis queue and Redis session drivers handle prefixes the same way.

What we’d like to confirm

1. Is it safe and recommended to use the same Redis database for cache, sessions, and queues — as long as each has its own prefix or not?
2. How can we correctly define separate prefixes for each system so that Laravel respects them?

In Laravel, you can give different Redis prefixes for sessions, cache, and queues by defining separate Redis connections in config/database.php, then linking each feature (session, cache, queue) to its own connection. This keeps their keys organized and prevents overlap.

Here’s short working code:

// config/database.php
'redis' => [
  'cache' => ['database' => 1, 'prefix' => 'cache_'],
  'session' => ['database' => 2, 'prefix' => 'sess_'],
  'queue' => ['database' => 3, 'prefix' => 'queue_'],
];

// config/cache.php
'stores' => ['redis' => ['connection' => 'cache']];

// config/session.php
'connection' => 'session';

// config/queue.php
'connections' => ['redis' => ['connection' => 'queue']];