PhpRedis

To use the PhpRedis extension, you need to change the client option of the Redis configuration in the configuration file config/database.php to phpredis:

'redis' => [ 
   'client' => 'phpredis',    
   // 其余的Redis配置...
 ],

In addition to the default host, port, database and password these service configuration options, PhpRedis Several additional connection parameters are also supported: persistent, prefix, read_timeout and timeout. You can add these configuration options to the configuration file config/database.php under the Redis service configuration item:

'default' => [
    'host' => env('REDIS_HOST', 'localhost'),    
    'password' => env('REDIS_PASSWORD', null),    
    'port' => env('REDIS_PORT', 6379),    
    'database' => 0,    
    'read_timeout' => 60,
  ],

Redis interaction

You can interact with Redis by calling various methods on the Redis facade. Redis The facade supports dynamic methods, which means you can call various Redis commands on the facade, and the commands will be passed directly to Redis. In the example, the GET command on Redis will be called via the get method on the Redis facade:

<?php
    namespace App\Http\Controllers;
    use App\Http\Controllers\Controller;
    use Illuminate\Support\Facades\Redis;
    class UserController extends Controller{   
     /**
     * 显示给定用户的配置文件。
     *
     * @param  int  $id
     * @return Response
     */   
    public function showProfile($id)   
     {     
        $user = Redis::get('user:profile:'.$id);        
        return view('user.profile', ['user' => $user]);    
      }
   }

As mentioned above, you Any Redis command can be called on the Redis facade. Laravel uses magic methods to pass commands to the Redis server, so just pass the parameters required by the Redis command:

Redis::set('name', 'Taylor');
$values = Redis::lrange('names', 5, 10);

Alternatively, you can also use the command method to pass the command to the server , which accepts the name of the command as its first argument and an array of values ​​as its second argument:

$values = Redis::command('lrange', ['name', 5, 10]);

Using multiple Redis connections

you A Redis instance can be obtained through the Redis::connection method:

$redis = Redis::connection();

This will return a default Redis instance. You can pass the connection or cluster name to the connection method to get a specific service or cluster in the Redis configuration:

$redis = Redis::connection('my-connection');

Pipeline Command

When you need to send many commands to the server in one operation, it is recommended that you use the pipeline command. The pipeline method accepts a Closure of a Redis instance. You can send all commands to the Redis instance and they will be executed in one operation:

Redis::pipeline(function ($pipe) { 
   for ($i = 0; $i < 1000; $i++) {     
      $pipe->set("key:$i", $i);   
      }
  });

Publish and Subscribe

Laravel provides convenient interfaces for Redis's publish and subscribe. These Redis commands allow you to listen for messages on a specified "channel". You can publish messages from another application to another application, even using other programming languages, allowing applications and processes to communicate easily.

First, we use the subscribe method to set up the channel listener. We place this method call in the Artisan command because calling the subscribe method starts a long-running process:

<?php
    namespace App\Console\Commands;
    use Illuminate\Console\Command;
    use Illuminate\Support\Facades\Redis;
    class RedisSubscribe extends Command{  
      /**
     * 控制台命令的名称和签名。
     *
     * @var string
     */ 
      protected $signature = 'redis:subscribe';    
    /**
     * 控制台命令说明。
     *
     * @var string
     */    
    protected $description = 'Subscribe to a Redis channel';    
    /**
     * 执行控制台命令。
     *
     * @return mixed
     */   
      public function handle()  
        {      
          Redis::subscribe(['test-channel'], function ($message) {      
                echo $message;        
               });  
        }
     }

Now we can use the publish method to Messages are published to the channel:

Route::get('publish', function () {  
  // 路由...    
  Redis::publish('test-channel', json_encode(['foo' => 'bar']));
});

Wildcard subscription

Use the psubscribe method to subscribe to the wildcard channel, which can be used to get all messages on all channels . $channel The name will be passed as the second parameter to the provided callback Closure:

Redis::psubscribe(['*'], function ($message, $channel) {
    echo $message;});Redis::psubscribe(['users.*'], function ($message, $channel) {
        echo $message;
     });