Redis

Setup Redis for PHP using Docker

1. Update the Dockerfile

RUN pecl install redis
RUN docker-php-ext-enable redis

2. Update the composer.json file

  {
    "require": {
        "ext-redis": "*"
    }
  }

3. Usage example

• Hello world

  $redis = new \Redis([
      'host' => 'tls://my-domain.com',
      'port' => 1234,
      'auth' => ['default', 'password']
  ]);
  
  $redis->set('test', 'Hello world!');
  $data = $redis->get('test')
  
  echo $data // Hello world!;

• Create a new user with a password and limit access to GET command and keys matching a pattern

  $redis->acl('SETUSER',
      'myusername',
      'on',
      '>defineAPassword',
      '~pattern*',
      '+GET'
  );

Redis commands

Create a new user

ACL SETUSER myusername on >defineAPassword ~pattern* +GET

List users

ACL USERS

Get user information

ACL GETUSER myusername

Set a value

SET my_key my_value

Get a value

GET my_key

GET all values by pattern in PHP and have the result as an associative array (value is a JSON string)

$redisKeys = $redis->keys('sport_centers:*');
$redis->multi(\Redis::PIPELINE);
foreach ($redisKeys as $key) {
    $redis->get($key);
}
$values = $redis->exec();

$sportCenters = array_combine($redisKeys, array_map(static fn(string $value) => json_decode($value, true, 512, JSON_THROW_ON_ERROR), $values));