PHP redis 使用BitMap存储setbit批量写入与getbit批量查询方法

普通单条用法不详细说明文档都有，下面主要介绍批量的写入与查询。 

php7.1写法

/**
     * 批量向 setBit中添加元素
     *
     * @param string $key setBit 的key
     * @param array $elems  待添加元素的集合，每一项为array('key' => value)
     * @param string $size 大小 u1代表无符号1位
     * @return int
     */
    public function setBitArray(string $key, array $elems, string $size = 'u1'): int
    {
        if (!$key || !is_array($elems)){
            return false;
        }

        $p = [];
        foreach ($elems as $k => $v){
            $p[] = 'set';
            $p[] = $size;
            $p[] = $k;
            $p[] = $v;
        }

        $result = $this->_redis->rawCommand('bitField',$key, ...$p);
        return $result;
    }

    /**
     * 批量查询 getBit 元素值
     *
     * @param string $key
     * @param array $data 查询元素的数组集合，每一项为array('key','key1','key2'.....'keyN')
     * @param string $size
     * @return array array('key'=>val,'key1'=>val,...)
     */
    public function getBitArray(string $key, array $data, string $size = 'u1') :array
    {
        if (!$key || !is_array($data)){
            return false;
        }

        $p = [];
        foreach ($data as $k => $v){
            $p[] = 'get';
            $p[] = $size;
            $p[] = $v;
        }

        $result1 = $this->_redis->rawCommand('bitField',$key, ...$p);

        $result =[];
        foreach ($data as $k => $v){
            $result[$v] = $result1[$k];
        }
        return $result;
    }

7.1以下的写法逻辑没啥区别

/**
     * 批量向 setBit中添加元素
     *
     * @param string $key setBit 的key
     * @param array $elems  待添加元素的集合，每一项为array('key' => value)
     * @param string $size 大小 u1代表无符号1位
     * @return int
     */
    public function setBitArray($key, $elems, $size = 'u1')
    {
        if (!$key || !is_array($elems)){
            return false;
        }

        $p = [];
        foreach ($elems as $k => $v){
            $p[] = 'set';
            $p[] = $size;
            $p[] = $k;
            $p[] = $v;
        }

        $result = $this->_redis->rawCommand('bitField',$key, ...$p);
        return $result;
    }

    /**
     * 批量查询 getBit 元素值
     *
     * @param string $key
     * @param array $data 查询元素的数组集合，每一项为array('key','key1','key2'.....'keyN')
     * @param string $size
     * @return array array('key'=>val,'key1'=>val,...)
     */
    public function getBitArray($key, $data, $size = 'u1')
    {
        if (!$key || !is_array($data)){
            return false;
        }

        $p = [];
        foreach ($data as $k => $v){
            $p[] = 'get';
            $p[] = $size;
            $p[] = $v;
        }

        $result1 = $this->_redis->rawCommand('bitField',$key, ...$p);

        $result =[];
        foreach ($data as $k => $v){
            $result[$v] = $result1[$k];
        }
        return $result;
    }