<记录> PHP Redis操作类
namespace common\controller; class Redis { public $redisObj = null; //redis实例化时静态变量 static protected $instance; protected $sn; protected $index; public function __construct($options = []) { $host = trim(isset($options["host"]) ? $options["host"] : '192.168.1.121'); $port = trim(isset($options["port"]) ? $options["port"] : 6379); $auth = trim(isset($options["auth"]) ? $options["auth"] : "123"); $index = trim(isset($options["index"]) ? $options["index"] : 0); if (!is_integer($index) && $index > 16) { $index = 0; } $sn = md5("{$host}{$port}{$auth}{$index}"); $this->sn = $sn; if (!isset($this->redisObj[$this->sn])) { $this->redisObj[$this->sn] = new \Redis(); $this->redisObj[$this->sn]->connect($host, $port); $this->redisObj[$this->sn]->auth($auth); $this->redisObj[$this->sn]->select($index); } $this->redisObj[$this->sn]->sn = $sn; $this->index = $index; return; } /** * Power: Mikkle * Email:776329498@qq.com * @param array $options * @return Redis */ public static function instance($options = []) { return new Redis($options); } public function setExpire($key, $time = 0) { if (!$key) { return false; } switch (true) { case ($time == 0): return $this->redisObj[$this->sn]->expire($key, 0); break; case ($time > time()): $this->redisObj[$this->sn]->expireAt($key, $time); break; default: return $this->redisObj[$this->sn]->expire($key, $time); } } /*------------------------------------start 1.string结构----------------------------------------------------*/ /** * 增,设置值 构建一个字符串 * @param string $key KEY名称 * @param string $value 设置值 * @param int $timeOut 时间 0表示无过期时间 * @return true【总是返回true】 */ public function set($key, $value, $timeOut = 0) { $setRes = $this->redisObj[$this->sn]->set($key, $value); if ($timeOut > 0) { $this->redisObj[$this->sn]->expire($key, $timeOut); } return $setRes; } /** * 查,获取 某键对应的值,不存在返回false * @param $key ,键值 * @return bool|string ,查询成功返回信息,失败返回false */ public function get($key) { $setRes = $this->redisObj[$this->sn]->get($key); //不存在返回false if ($setRes === 'false') { return false; } return $setRes; } /*------------------------------------1.end string结构----------------------------------------------------*/ /*------------------------------------2.start list结构----------------------------------------------------*/ /** * 增,构建一个列表(先进后去,类似栈) * @param String $key KEY名称 * @param string $value 值 * @param $timeOut |num 过期时间 */ public function lpush($key, $value, $timeOut = 0) { // echo "$key - $value \n"; $re = $this->redisObj[$this->sn]->LPUSH($key, $value); if ($timeOut > 0) { $this->redisObj[$this->sn]->expire($key, $timeOut); } return $re; } /** * 增,构建一个列表(先进先去,类似队列) * @param string $key KEY名称 * @param string $value 值 * @param $timeOut |num 过期时间 */ public function rpush($key, $value, $timeOut = 0) { // echo "$key - $value \n"; $re = $this->redisObj[$this->sn]->RPUSH($key, $value); if ($timeOut > 0) { $this->redisObj[$this->sn]->expire($key, $timeOut); } return $re; } /** * 查,获取所有列表数据(从头到尾取) * @param string $key KEY名称 * @param int $head 开始 * @param int $tail 结束 */ public function lranges($key, $head, $tail) { return $this->redisObj[$this->sn]->lrange($key, $head, $tail); } /** * Power by Mikkle * QQ:776329498 * @param $key * @return mixed */ public function rpop($key) { return $this->redisObj[$this->sn]->rPop($key); } public function lpop($key) { return $this->redisObj[$this->sn]->lpop($key); } /*------------------------------------2.end list结构----------------------------------------------------*/ /*------------------------------------3.start set结构----------------------------------------------------*/ /** * 增,构建一个集合(无序集合) * @param string $key 集合Y名称 * @param string|array $value 值 * @param int $timeOut 时间 0表示无过期时间 * @return */ public function sadd($key, $value, $timeOut = 0) { $re = $this->redisObj[$this->sn]->sadd($key, $value); if ($timeOut > 0) { $this->redisObj[$this->sn]->expire($key, $timeOut); } return $re; } /** * 查,取集合对应元素 * @param string $key 集合名字 */ public function smembers($key) { $re = $this->redisObj[$this->sn]->exists($key); //存在返回1,不存在返回0 if (!$re) { return false; } return $this->redisObj[$this->sn]->smembers($key); } /*------------------------------------3.end set结构----------------------------------------------------*/ /*------------------------------------4.start sort set结构----------------------------------------------------*/ /* * 增,改,构建一个集合(有序集合),支持批量写入,更新 * @param string $key 集合名称 * @param array $score_value key为scoll, value为该权的值 * @return int 插入操作成功返回插入数量【,更新操作返回0】 */ public function zadd($key, $score_value, $timeOut = 0) { if (!is_array($score_value)) { return false; } $a = 0; //存放插入的数量 foreach ($score_value as $score => $value) { $re = $this->redisObj[$this->sn]->zadd($key, $score, $value); //当修改时,可以修改,但不返回更新数量 $re && $a += 1; if ($timeOut > 0) { $this->redisObj[$this->sn]->expire($key, $timeOut); } } return $a; } /** * 查,有序集合查询,可升序降序,默认从第一条开始,查询一条数据 * @param $key ,查询的键值 * @param $min ,从第$min条开始 * @param $max,查询的条数 * @param $order ,asc表示升序排序,desc表示降序排序 * @return array|bool 如果成功,返回查询信息,如果失败返回false */ public function zrange($key, $min = 0, $num = 1, $order = 'desc') { $re = $this->redisObj[$this->sn]->exists($key); //存在返回1,不存在返回0 if (!$re) { return false; } //不存在键值 if ('desc' == strtolower($order)) { $re = $this->redisObj[$this->sn]->zrevrange($key, $min, $min + $num - 1); } else { $re = $this->redisObj[$this->sn]->zrange($key, $min, $min + $num - 1); } if (!$re) { return false; } //查询的范围值为空 return $re; } /** * 返回集合key中,成员member的排名 * @param $key,键值 * @param $member,scroll值 * @param $type ,是顺序查找还是逆序 * @return bool,键值不存在返回false,存在返回其排名下标 */ public function zrank($key, $member, $type = 'desc') { $type = strtolower(trim($type)); if ($type == 'desc') { $re = $this->redisObj[$this->sn]->zrevrank($key, $member); //其中有序集成员按score值递减(从大到小)顺序排列,返回其排位 } else { $re = $this->redisObj[$this->sn]->zrank($key, $member); //其中有序集成员按score值递增(从小到大)顺序排列,返回其排位 } if (!is_numeric($re)) { return false; } //不存在键值 return $re; } /** * 返回名称为key的zset中score >= star且score <= end的所有元素 * @param $key * @param $member * @param $star, * @param $end, * @return array */ public function zrangbyscore($key, $star, $end) { return $this->redisObj[$this->sn]->ZRANGEBYSCORE($key, $star, $end); } /** * 返回名称为key的zset中元素member的score * @param $key * @param $member * @return string ,返回查询的member值 */ function zscore($key, $member) { return $this->redisObj[$this->sn]->ZSCORE($key, $member); } /*------------------------------------4.end sort set结构----------------------------------------------------*/ /*------------------------------------5.hash结构----------------------------------------------------*/ /** * 增,以json格式插入数据到缓存,hash类型 * @param $redis_key |array , $redis_key['key']数据库的表名称;$redis_key['field'],下标key * @param $token,该活动的token,用于区分标识 * @param $id,该活动的ID,用于区分标识 * @param $data|array ,要插入的数据, * @param $timeOut ,过期时间,默认为0 * @return $number 插入成功返回1【,更新操作返回0】 */ public function hset_json($redis_key, $token, $id, $data, $timeOut = 0) { $redis_table_name = $redis_key['key'] . ':' . $token; //key的名称 $redis_key_name = $redis_key['field'] . ':' . $id; //field的名称,表示第几个活动 $redis_info = json_encode($data); //field的数据value,以json的形式存储 $re = $this->redisObj[$this->sn]->hSet($redis_table_name, $redis_key_name, $redis_info); //存入缓存 if ($timeOut > 0) { $this->redisObj[$this->sn]->expire($redis_table_name, $timeOut); } //设置过期时间 return $re; } /** * 查,json形式存储的哈希缓存,有值则返回;无值则查询数据库并存入缓存 * @param $redis,$redis['key'],$redis['field']分别是hash的表名称和键值 * @param $token,$token为公众号 * @param $token,$id为活动ID * @return bool|array, 成功返回要查询的信息,失败或不存在返回false */ public function hget_json($redis_key, $token, $id) { $re = $this->redisObj[$this->sn]->hexists($redis_key['key'] . ':' . $token, $redis_key['field'] . ':' . $id); //返回缓存中该hash类型的field是否存在 if ($re) { $info = $this->redisObj[$this->sn]->hget($redis_key['key'] . ':' . $token, $redis_key['field'] . ':' . $id); $info = json_decode($info, true); } else { $info = false; } return $info; } public function hset($redis_key, $name, $data, $timeOut = 0) { $re = $this->redisObj[$this->sn]->hset($redis_key, $name, $data); if ($timeOut > 0) { $this->redisObj[$this->sn]->expire($redis_key, $timeOut); } return $re; } /** * 增,普通逻辑的插入hash数据类型的值 * @param $key ,键名 * @param $data |array 一维数组,要存储的数据 * @param $timeOut |num 过期时间 * @return $number 返回OK【更新和插入操作都返回ok】 */ public function hmset($key, $data, $timeOut = 0) { $re = $this->redisObj[$this->sn]->hmset($key, $data); if ($timeOut > 0) { $this->redisObj[$this->sn]->expire($key, $timeOut); } return $re; } /** * 查,普通的获取值 * @param $key,表示该hash的下标值 * @return array 。成功返回查询的数组信息,不存在信息返回false */ public function hval($key) { $re = $this->redisObj[$this->sn]->exists($key); //存在返回1,不存在返回0 if (!$re) { return false; } $vals = $this->redisObj[$this->sn]->hvals($key); $keys = $this->redisObj[$this->sn]->hkeys($key); $re = array_combine($keys, $vals); foreach ($re as $k => $v) { if (!is_null(json_decode($v))) { $re[$k] = json_decode($v, true); //true表示把json返回成数组 } } return $re; } /** * * @param $key * @param $filed * @return bool|string */ public function hget($key, $filed = []) { if (empty($filed)) { $re = $this->redisObj[$this->sn]->hgetAll($key); } elseif (is_string($filed)) { $re = $this->redisObj[$this->sn]->hget($key, $filed); } elseif (is_array($filed)) { $re = $this->redisObj[$this->sn]->hMget($key, $filed); } if (!$re) { return false; } return $re; } public function hsetAll($redis_key, $name, $data, $timeOut = 0) { $re = $this->redisObj[$this->sn]->hset($redis_key, $name, $data); if ($timeOut > 0) { $this->redisObj[$this->sn]->expire($redis_key, $timeOut); } return $re; } public function hdel($redis_key, $name) { $re = $this->redisObj[$this->sn]->hdel($redis_key, $name); return $re; } /*------------------------------------end hash结构----------------------------------------------------*/ /*------------------------------------其他结构----------------------------------------------------*/ /** * 设置自增,自减功能 * @param $key ,要改变的键值 * @param int $num ,改变的幅度,默认为1 * @param string $member ,类型是zset或hash,需要在输入member或filed字段 * @param string $type,类型,default为普通增减,还有:zset,hash * @return bool|int 成功返回自增后的scroll整数,失败返回false */ public function incre($key, $num = 1, $member = '', $type = '') { $num = intval($num); switch (strtolower(trim($type))) { case "zset": $re = $this->redisObj[$this->sn]->zIncrBy($key, $num, $member); //增长权值 break; case "hash": $re = $this->redisObj[$this->sn]->hincrby($key, $member, $num); //增长hashmap里的值 break; default: if ($num > 0) { $re = $this->redisObj[$this->sn]->incrby($key, $num); //默认增长 } else { $re = $this->redisObj[$this->sn]->decrBy($key, -$num); //默认增长 } break; } if ($re) { return $re; } return false; } /** * 清除缓存 * @param int $type 默认为0,清除当前数据库;1表示清除所有缓存 */ function flush($type = 0) { if ($type) { $this->redisObj[$this->sn]->flushAll(); //清除所有数据库 } else { $this->redisObj[$this->sn]->flushdb(); //清除当前数据库 } } /** * 检验某个键值是否存在 * @param $keys ,键值 * @param string $type,类型,默认为常规 * @param string $field。若为hash类型,输入$field * @return bool */ public function exists($keys, $type = '', $field = '') { switch (strtolower(trim($type))) { case 'hash': $re = $this->redisObj[$this->sn]->hexists($keys, $field); //有返回1,无返回0 break; default: $re = $this->redisObj[$this->sn]->exists($keys); break; } return $re; } /** * 删除缓存 * @param string|array $key,键值 * @param $type,类型,默认为常规,还有hash,zset * @param string $field,hash=>表示$field值,set=>表示value,zset=>表示value值,list类型特殊暂时不加 * @return int | ,返回删除的个数 */ public function delete($key, $type = "default", $field = '') { switch (strtolower(trim($type))) { case 'hash': $re = $this->redisObj[$this->sn]->hDel($key, $field); //返回删除个数 break; case 'set': $re = $this->redisObj[$this->sn]->sRem($key, $field); //返回删除个数 break; case 'zset': $re = $this->redisObj[$this->sn]->zDelete($key, $field); //返回删除个数 break; default: $re = $this->redisObj[$this->sn]->del($key); //返回删除个数 break; } return $re; } //日志记录 public function logger($log_content, $position = 'user') { $max_size = 1000000; //声明日志的最大尺寸1000K $log_dir = './log'; //日志存放根目录 if (!file_exists($log_dir)) { mkdir($log_dir, 0777); } //如果不存在该文件夹,创建 if ($position == 'user') { $log_filename = "{$log_dir}/User_redis_log.txt"; //日志名称 } else { $log_filename = "{$log_dir}/Wap_redis_log.txt"; //日志名称 } //如果文件存在并且大于了规定的最大尺寸就删除了 if (file_exists($log_filename) && (abs(filesize($log_filename)) > $max_size)) { unlink($log_filename); } //写入日志,内容前加上时间, 后面加上换行, 以追加的方式写入 file_put_contents($log_filename, date('Y-m-d_H:i:s') . " " . $log_content . "\n", FILE_APPEND); } function __destruct() { // $this->redisObj[$this->sn]->close(); } /** * 魔术方法 有不存在的操作的时候执行 * @access public * @param string $method 方法名 * @param array $args 参数 * @return mixed */ public function __call($method, $args) { call_user_func_array([$this->redisObj[$this->sn], $method], $args); } }
使用方法
//hash 操作 $config = array( 'host' => '192.168.1.121', 'port' => 6379, 'index' => 0, 'auth' => '123', ); try { $redis = new Redis($config); } catch (Exception $e) { echo "Redis 连接失败"; exit(); } // 设置数组 $redis->hmset('tom', ['name' => 'tom', 'age' => 10, 'hobby' => 'football,climbing'], 60); // 取出数组 $res = $redis->hval('tom'); //设置单项值 $redis->hset('tom','age',15); //List 操作 for ($i = 0; $i < 10; $i++) { $redis->lpush('queue', 'employee_' . $i); } $element = $redis->rpop('queue'); //获得队列内全部 var_dump($redis->lranges('queue', 0, -1)); //删除KEY $redis->del('queue'); //string操作 //设置值 $redis->set('google', 'www.google.com'); //取值 $redis->get('google'); //自加1 $redis->incr('visit'); //自加10 $redis->incrby('visit', 10); //自加1 $redis->decr('visit'); //自加10 $redis->decrby('visit', 10);