Redis 有序集合(sorted set)

Redis 有序集合和集合一樣也是string類型元素的集合,且不允許重復的成員。

不同的是每個元素都會關聯一個double類型的分數。redis正是通過分數來為集合中的成員進行從小到大的排序。

有序集合的成員是唯一的,但分數(score)卻可以重復。

集合是通過哈希表實現的，所以添加，刪除，查找的復雜度都是O(1)。 集合中最大的成員數為 232 - 1 (4294967295, 每個集合可存儲40多億個成員)。

操作方法

方法列表

基本使用

go(function (){
    $redis =  new \EasySwoole\Redis\Redis(new \EasySwoole\Redis\Config\RedisConfig([
        'host'      => '127.0.0.1',
        'port'      => '6379',
        'auth'      => 'easyswoole',
        'serialize' => \EasySwoole\Redis\Config\RedisConfig::SERIALIZE_NONE
    ]));
    $key = [
            'sortMuster1',
            'sortMuster2',
            'sortMuster3',
            'sortMuster4',
            'sortMuster5',
        ];
    $member = [
        'member1',
        'member2',
        'member3',
        'member4',
        'member5',
    ];
    $score = [
        1,
        2,
        3,
        4,
    ];
    $redis->del($key[0]);
    $data = $redis->zAdd($key[0], $score[0], $member[0], $score[1], $member[1]);
    var_dump($data);

    $data = $redis->zCard($key[0]);
    var_dump($data);

    $data = $redis->zCount($key[0], 0, 3);
    var_dump($data);

    $data = $redis->zInCrBy($key[0], 1, $member[1]);
    var_dump($data);

    $redis->del($key[0]);
    $redis->del($key[1]);
    $redis->zAdd($key[0], $score[0], $member[0], $score[1], $member[1]);
    $redis->zAdd($key[1], $score[0], $member[0], $score[3], $member[3]);
    $data = $redis->zInTerStore($key[2], [$key[0], $key[1]], [1, 2]);
    var_dump($data);

    $data = $redis->zLexCount($key[0], '-', '+');
    var_dump($data);

    $redis->del($key[0]);
    $redis->zAdd($key[0], $score[0], $member[0], $score[1], $member[1], $score[2], $member[2]);
    $data = $redis->zRange($key[0], 0, -1, true);
    var_dump($data);

    $data = $redis->zRangeByLex($key[0], '-', '+');
    var_dump($data);

    $data = $redis->zRangeByScore($key[0], 2, 3, ['withScores' => true, 'limit' => array(0, 2)]);
    var_dump($data);

    $data = $redis->zRank($key[0], $member[1]);
    var_dump($data);

    $data = $redis->zRem($key[0], $member[1], $member[2]);
    var_dump($data);

    $redis->del($key[0]);
    $redis->zAdd($key[0], $score[0], $member[0], $score[1], $member[1], $score[2], $member[2]);
    $data = $redis->zRemRangeByLex($key[0], '-', '+');
    var_dump($data);

    $redis->del($key[0]);
    $redis->zAdd($key[0], $score[0], $member[0], $score[1], $member[1], $score[2], $member[2]);
    $data = $redis->zRemRangeByRank($key[0], 0, 2);
    var_dump($data);

    $redis->del($key[0]);
    $redis->zAdd($key[0], $score[0], $member[0], $score[1], $member[1], $score[2], $member[2]);
    $data = $redis->zRemRangeByScore($key[0], 0, 3);
    var_dump($data);

    $redis->del($key[0]);
    $redis->zAdd($key[0], $score[0], $member[0], $score[1], $member[1], $score[2], $member[2]);
    $data = $redis->zRevRange($key[0], 0, 3, true);
    var_dump($data);

    $redis->del($key[0]);
    $redis->zAdd($key[0], $score[0], $member[0], $score[1], $member[1], $score[2], $member[2]);
    $data = $redis->zRevRangeByScore($key[0], 3, 0, ['withScores' => true, 'limit' => array(0, 3)]);
    var_dump($data);

    $data = $redis->zRevRank($key[0], $member[0]);
    var_dump($data);

    $data = $redis->zScore($key[0], $member[0]);
    var_dump($data);

    $redis->del($key[0]);
    $redis->del($key[1]);
    $redis->del($key[2]);
    $redis->zAdd($key[0], $score[0], $member[0], $score[1], $member[1]);
    $redis->zAdd($key[1], $score[0], $member[0], $score[3], $member[3]);
    $data = $redis->zUnionStore($key[2], [$key[1], $key[0]]);
    var_dump($data);

    $cursor = 0;
    $redis->del('a');
    $redis->zAdd('a',1,'a1',2,'a2',3,'a3',4,'a4',5,'a5');
    $data = [];
    do {
        $keys = $redis->zScan('a',$cursor,'*',1);
        $data = array_merge($data,$keys);
    } while ($cursor);
    var_dump($data);

})