LaravelでRedisを使う入門編。導入設定と基本的なRedisファサードの使い方（DBキャッシュ）

# Laravelルートディレクトリへ移動する
cd /path/to/laravel

# predis/predisパッケージインストールする
composer require predis/predis

# 実行結果
[demo@localhost laravel]# composer require predis/predis
Using version ^1.1 for predis/predis
./composer.json has been updated
Loading composer repositories with package information
Updating dependencies (including require-dev)
Package operations: 1 install, 0 updates, 0 removals
  - Installing predis/predis (v1.1.1): Downloading (100%)         
predis/predis suggests installing ext-phpiredis (Allows faster serialization and deserialization of the Redis protocol)
Writing lock file
Generating optimized autoload files
> Illuminate\Foundation\ComposerScripts::postAutoloadDump
> @php artisan package:discover
Discovered Package: fideloper/proxy
Discovered Package: laravel/tinker
Package manifest generated successfully.

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use DB;
use Illuminate\Support\Facades\Redis;

class SampleRedisController extends Controller
{
  protected $table;
  protected $id;

  public function __construct()
  {
    $this->table = 'users';
  }

  /**
   * ここにアクションを記述していく
   */
  public function hoge()
  {
    
  }
}

/**
 * strings型データを登録する
 */
public function set()
{
  $this->id = 6;

  // DBからデータ取得
  $data = json_encode(DB::table($this->table)->select('id', 'name', 'email')->where('id', $this->id)->first());

  // Redisへリスト型として保存する
  Redis::command('SET', [$this->id, $data]);
}

"SET" "6" "{\"id\":6,\"name\":\"user06\",\"email\":\"test06@test.com\"}"

/**
 * strings型データを取得する
 */
public function get()
{
  $this->id = 6;

  $data = json_decode(Redis::command('GET', [$this->id]));

}

stdClass Object
(
    [id] => 6
    [name] => user06
    [email] => test06@test.com
)

/**
 * strings型データを範囲を指定して取得する
 */
public function getrange()
{
  $data = Redis::command('GETRANGE', [1, 8, 22]);

}

"name":"user01"

/**
 * リスト型データを登録する（末尾）
 */
public function rpush()
{
  $this->id = 6;

  // DBからデータ取得
  $data = json_encode(DB::table($this->table)->select('id', 'name', 'email')->where('id', $this->id)->first());

  // Redisへリスト型として保存する
  Redis::command('RPUSH', ['user', $data]);
}

"RPUSH" "user" "{\"id\":6,\"name\":\"user06\",\"email\":\"test06@test.com\"}"

/**
 * 指定した範囲でのリスト型データを取得する
 */
public function lrange()
{
  $data = Redis::command('LRANGE', ['user',2,6]);

  $users = array();
  foreach ($data as $d) {
    $users[] = json_decode($d);
  }

}

Array
(
    [0] => stdClass Object
        (
            [id] => 2
            [name] => user02
            [email] => user02@test.com
        )

    [1] => stdClass Object
        (
            [id] => 3
            [name] => user03
            [email] => test03@test.com
        )

    [2] => stdClass Object
        (
            [id] => 4
            [name] => user04
            [email] => test04@test.com
        )

    [3] => stdClass Object
        (
            [id] => 5
            [name] => user05
            [email] => test05@test.com
        )

    [4] => stdClass Object
        (
            [id] => 7
            [name] => user07
            [email] => test07@test.com
        )

)

/**
 * セット型のデータを登録する
 */
public function sadd()
{
  $data =[
    "ja" => ["おはよう", "こんにちは", "こんばんは"],
    "en" => ["good morning", "hello", "good evening"]
  ];

  foreach ($data as $key => $value) {
    Redis::command('SADD', [$key, $value]);
  }
}

127.0.0.1:6379> SMEMBERS en
1) "good evening"
2) "hello"
3) "good morning"

/**
 * セット型のデータから指定したKEYの集合を取得する
 */
public function smembers()
{
  $data = Redis::command('SMEMBERS', ['en']);

}

Array
(
    [0] => good evening
    [1] => hello
    [2] => good morning
)

/**
 * ソート済みセット型のデータを登録する
 */
public function zadd()
{
  $data = [
    ["score", 100, "user01"],
    ["score", 220, "user03"],
    ["score", 490, "user06"],
    ["score", 160, "user04"],
    ["score", 370, "user10"],
  ];

  foreach ($data as $value) {
    Redis::command('ZADD', $value);
  }
}

] "ZADD" "score" "100" "user01"
] "ZADD" "score" "220" "user03"
] "ZADD" "score" "490" "user06"
] "ZADD" "score" "160" "user04"
] "ZADD" "score" "370" "user10"

/**
 * ソート済みセット型のデータを取得する
 */
public function zrange()
{
  $data = Redis::command('ZRANGE', ["score", 0, -1, "WITHSCORES"]);

}

Array
(
    [user01] => 100
    [user04] => 160
    [user03] => 220
    [user10] => 370
    [user06] => 490
)

/**
 * ハッシュ型データを登録する
 */
public function hset()
{
  $data = [
    ["user01", "id", 1],
    ["user01", "name", "mitsuha"],
    ["user01", "email", "mitsuha@ritolab.com"],
    ["user02", "id", 2],
    ["user02", "name", "rito"],
    ["user03", "email", "rito@ritolab.com"]
  ];

  foreach ($data as $value) {
    Redis::command('HSET', $value);
  }
}

] "HSET" "user01" "id" "1"
] "HSET" "user01" "name" "mitsuha"
] "HSET" "user01" "email" "mitsuha@ritolab.com"
] "HSET" "user02" "id" "2"
] "HSET" "user02" "name" "rito"
] "HSET" "user03" "email" "rito@ritolab.com"

/**
 * ハッシュ型データから任意のKEYのデータを取得する
 */
public function hgetall()
{
  $data = Redis::command('HGETALL', ["user01"]);

}

Array
(
    [id] => 1
    [name] => mitsuha
    [email] => mitsuha@ritolab.com
)