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<?php
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namespace Org\RedisSDK;
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/**
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* redis操作类
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* 说明,任何为false的串,存在redis中都是空串。
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* 只有在key不存在时,才会返回false。
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* 这点可用于防止缓存穿透
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*
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*/
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class Redis
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{
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private $redis;
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//当前数据库ID号
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protected $dbId=2;
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//当前权限认证码
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protected $auth;
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/**
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* 实例化的对象,单例模式.
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* @var \iphp\db\Redis
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*/
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static private $_instance=array();
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private $k;
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//连接属性数组
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protected $attr=array(
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//连接超时时间,redis配置文件中默认为300秒
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'timeout'=>30,
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//选择的数据库。
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'db_id'=>2,
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);
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//什么时候重新建立连接
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protected $expireTime;
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protected $host;
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protected $port;
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public function __construct($config,$attr=array())
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{
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$this->attr = array_merge($this->attr,$attr);
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$this->redis = new \Redis();
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$this->port = $config['port'] ? $config['port'] : 6379;
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$this->host = $config['host'];
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$this->redis->connect($this->host, $this->port, $this->attr['timeout']);
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$this->redis->select($this->dbId);
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if($config['auth'])
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{
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$this->auth($config['auth']);
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$this->auth = $config['auth'];
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}
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$this->expireTime = time() + $this->attr['timeout'];
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}
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/**
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* 得到实例化的对象.
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* 为每个数据库建立一个连接
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* 如果连接超时,将会重新建立一个连接
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* @param array $config
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* @param int $dbId
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* @return \iphp\db\Redis
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*/
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public static function getInstance($config, $attr = array())
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{
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//如果是一个字符串,将其认为是数据库的ID号。以简化写法。
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if(!is_array($attr))
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{
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$dbId = $attr;
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$attr = array();
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$attr['db_id'] = $dbId;
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}
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$attr['db_id'] = $attr['db_id'] ? $attr['db_id'] : 0;
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$k = md5(implode('', $config).$attr['db_id']);
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if(! (static::$_instance[$k] instanceof self))
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{
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static::$_instance[$k] = new self($config,$attr);
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static::$_instance[$k]->k = $k;
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static::$_instance[$k]->dbId = $attr['db_id'];
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//如果不是0号库,选择一下数据库。
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if($attr['db_id'] != 0){
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static::$_instance[$k]->select($attr['db_id']);
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}
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}
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elseif( time() > static::$_instance[$k]->expireTime)
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{
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static::$_instance[$k]->close();
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static::$_instance[$k] = new self($config,$attr);
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static::$_instance[$k]->k = $k;
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static::$_instance[$k]->dbId= $attr['db_id'];
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//如果不是0号库,选择一下数据库。
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if($attr['db_id']!=0){
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static::$_instance[$k]->select($attr['db_id']);
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}
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}
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return static::$_instance[$k];
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}
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private function __clone(){}
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/**
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* 执行原生的redis操作
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* @return \Redis
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*/
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public function getRedis()
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{
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return $this->redis;
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}
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/*****************hash表操作函数*******************/
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/**
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* 得到hash表中一个字段的值
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* @param string $key 缓存key
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* @param string $field 字段
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* @return string|false
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*/
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public function hGet($key,$field)
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{
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return $this->redis->hGet($key,$field);
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}
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/**
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* 为hash表设定一个字段的值
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* @param string $key 缓存key
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* @param string $field 字段
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* @param string $value 值。
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* @return bool
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*/
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public function hSet($key,$field,$value)
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{
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return $this->redis->hSet($key,$field,$value);
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}
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/**
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* 判断hash表中,指定field是不是存在
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* @param string $key 缓存key
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* @param string $field 字段
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* @return bool
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*/
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public function hExists($key,$field)
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{
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return $this->redis->hExists($key,$field);
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}
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/**
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* 删除hash表中指定字段 ,支持批量删除
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* @param string $key 缓存key
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* @param string $field 字段
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* @return int
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*/
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public function hdel($key,$field)
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{
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$fieldArr=explode(',',$field);
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$delNum=0;
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foreach($fieldArr as $row)
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{
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$row=trim($row);
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$delNum+=$this->redis->hDel($key,$row);
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}
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return $delNum;
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}
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/**
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* 返回hash表元素个数
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* @param string $key 缓存key
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* @return int|bool
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*/
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public function hLen($key)
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{
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return $this->redis->hLen($key);
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}
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/**
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* 为hash表设定一个字段的值,如果字段存在,返回false
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* @param string $key 缓存key
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* @param string $field 字段
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* @param string $value 值。
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* @return bool
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*/
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public function hSetNx($key,$field,$value)
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{
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return $this->redis->hSetNx($key,$field,$value);
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}
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/**
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* 为hash表多个字段设定值。
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* @param string $key
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* @param array $value
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* @return array|bool
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*/
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public function hMset($key,$value)
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{
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if(!is_array($value))
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return false;
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return $this->redis->hMset($key,$value);
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}
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/**
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* 为hash表多个字段设定值。
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* @param string $key
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* @param array|string $value string以','号分隔字段
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* @return array|bool
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*/
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public function hMget($key,$field)
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{
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if(!is_array($field))
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$field=explode(',', $field);
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return $this->redis->hMget($key,$field);
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}
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/**
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* 为hash表设这累加,可以负数
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* @param string $key
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* @param int $field
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* @param string $value
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* @return bool
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*/
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public function hIncrBy($key,$field,$value)
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{
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$value=intval($value);
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return $this->redis->hIncrBy($key,$field,$value);
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}
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/**
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* 返回所有hash表的所有字段
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* @param string $key
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* @return array|bool
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*/
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public function hKeys($key)
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{
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return $this->redis->hKeys($key);
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}
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/**
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* 返回所有hash表的字段值,为一个索引数组
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* @param string $key
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* @return array|bool
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*/
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public function hVals($key)
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{
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return $this->redis->hVals($key);
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}
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/**
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* 返回所有hash表的字段值,为一个关联数组
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* @param string $key
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* @return array|bool
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*/
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public function hGetAll($key)
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{
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return $this->redis->hGetAll($key);
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}
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/*********************有序集合操作*********************/
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/**
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* 给当前集合添加一个元素
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* 如果value已经存在,会更新order的值。
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* @param string $key
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* @param string $order 序号
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* @param string $value 值
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* @return bool
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*/
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public function zAdd($key,$order,$value)
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{
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return $this->redis->zAdd($key,$order,$value);
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}
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/**
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* 给$value成员的order值,增加$num,可以为负数
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* @param string $key
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* @param string $num 序号
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* @param string $value 值
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* @return 返回新的order
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*/
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public function zinCry($key,$num,$value)
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{
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return $this->redis->zinCry($key,$num,$value);
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}
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/**
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* 删除值为value的元素
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* @param string $key
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* @param stirng $value
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* @return bool
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*/
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public function zRem($key,$value)
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{
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return $this->redis->zRem($key,$value);
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}
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/**
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* 集合以order递增排列后,0表示第一个元素,-1表示最后一个元素
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* @param string $key
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* @param int $start
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* @param int $end
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* @return array|bool
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*/
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public function zRange($key,$start,$end)
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{
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return $this->redis->zRange($key,$start,$end);
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}
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/**
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* 集合以order递减排列后,0表示第一个元素,-1表示最后一个元素
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* @param string $key
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* @param int $start
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* @param int $end
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* @return array|bool
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*/
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public function zRevRange($key,$start,$end)
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{
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return $this->redis->zRevRange($key,$start,$end);
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}
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/**
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* 集合以order递增排列后,返回指定order之间的元素。
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* min和max可以是-inf和+inf 表示最大值,最小值
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* @param string $key
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* @param int $start
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* @param int $end
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* @package array $option 参数
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* withscores=>true,表示数组下标为Order值,默认返回索引数组
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* limit=>array(0,1) 表示从0开始,取一条记录。
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* @return array|bool
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*/
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public function zRangeByScore($key,$start='-inf',$end="+inf",$option=array())
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{
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return $this->redis->zRangeByScore($key,$start,$end,$option);
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}
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/**
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* 集合以order递减排列后,返回指定order之间的元素。
|
|
|
|
|
* min和max可以是-inf和+inf 表示最大值,最小值
|
|
|
|
|
* @param string $key
|
|
|
|
|
* @param int $start
|
|
|
|
|
* @param int $end
|
|
|
|
|
* @package array $option 参数
|
|
|
|
|
* withscores=>true,表示数组下标为Order值,默认返回索引数组
|
|
|
|
|
* limit=>array(0,1) 表示从0开始,取一条记录。
|
|
|
|
|
* @return array|bool
|
|
|
|
|
*/
|
|
|
|
|
public function zRevRangeByScore($key,$start='-inf',$end="+inf",$option=array())
|
|
|
|
|
{
|
|
|
|
|
return $this->redis->zRevRangeByScore($key,$start,$end,$option);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 返回order值在start end之间的数量
|
|
|
|
|
* @param unknown $key
|
|
|
|
|
* @param unknown $start
|
|
|
|
|
* @param unknown $end
|
|
|
|
|
*/
|
|
|
|
|
public function zCount($key,$start,$end)
|
|
|
|
|
{
|
|
|
|
|
return $this->redis->zCount($key,$start,$end);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 返回值为value的order值
|
|
|
|
|
* @param unknown $key
|
|
|
|
|
* @param unknown $value
|
|
|
|
|
*/
|
|
|
|
|
public function zScore($key,$value)
|
|
|
|
|
{
|
|
|
|
|
return $this->redis->zScore($key,$value);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 返回集合以score递增加排序后,指定成员的排序号,从0开始。
|
|
|
|
|
* @param unknown $key
|
|
|
|
|
* @param unknown $value
|
|
|
|
|
*/
|
|
|
|
|
public function zRank($key,$value)
|
|
|
|
|
{
|
|
|
|
|
return $this->redis->zRank($key,$value);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 返回集合以score递增加排序后,指定成员的排序号,从0开始。
|
|
|
|
|
* @param unknown $key
|
|
|
|
|
* @param unknown $value
|
|
|
|
|
*/
|
|
|
|
|
public function zRevRank($key,$value)
|
|
|
|
|
{
|
|
|
|
|
return $this->redis->zRevRank($key,$value);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 删除集合中,score值在start end之间的元素 包括start end
|
|
|
|
|
* min和max可以是-inf和+inf 表示最大值,最小值
|
|
|
|
|
* @param unknown $key
|
|
|
|
|
* @param unknown $start
|
|
|
|
|
* @param unknown $end
|
|
|
|
|
* @return 删除成员的数量。
|
|
|
|
|
*/
|
|
|
|
|
public function zRemRangeByScore($key,$start,$end)
|
|
|
|
|
{
|
|
|
|
|
return $this->redis->zRemRangeByScore($key,$start,$end);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 返回集合元素个数。
|
|
|
|
|
* @param unknown $key
|
|
|
|
|
*/
|
|
|
|
|
public function zCard($key)
|
|
|
|
|
{
|
|
|
|
|
return $this->redis->zCard($key);
|
|
|
|
|
}
|
|
|
|
|
/*********************队列操作命令************************/
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 在队列尾部插入一个元素
|
|
|
|
|
* @param unknown $key
|
|
|
|
|
* @param unknown $value
|
|
|
|
|
* 返回队列长度
|
|
|
|
|
*/
|
|
|
|
|
public function rPush($key,$value)
|
|
|
|
|
{
|
|
|
|
|
return $this->redis->rPush($key,$value);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 在队列尾部插入一个元素 如果key不存在,什么也不做
|
|
|
|
|
* @param unknown $key
|
|
|
|
|
* @param unknown $value
|
|
|
|
|
* 返回队列长度
|
|
|
|
|
*/
|
|
|
|
|
public function rPushx($key,$value)
|
|
|
|
|
{
|
|
|
|
|
return $this->redis->rPushx($key,$value);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 在队列头部插入一个元素
|
|
|
|
|
* @param unknown $key
|
|
|
|
|
* @param unknown $value
|
|
|
|
|
* 返回队列长度
|
|
|
|
|
*/
|
|
|
|
|
public function lPush($key,$value)
|
|
|
|
|
{
|
|
|
|
|
return $this->redis->lPush($key,$value);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 在队列头插入一个元素 如果key不存在,什么也不做
|
|
|
|
|
* @param unknown $key
|
|
|
|
|
* @param unknown $value
|
|
|
|
|
* 返回队列长度
|
|
|
|
|
*/
|
|
|
|
|
public function lPushx($key,$value)
|
|
|
|
|
{
|
|
|
|
|
return $this->redis->lPushx($key,$value);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 返回队列长度
|
|
|
|
|
* @param unknown $key
|
|
|
|
|
*/
|
|
|
|
|
public function lLen($key)
|
|
|
|
|
{
|
|
|
|
|
return $this->redis->lLen($key);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 返回队列指定区间的元素
|
|
|
|
|
* @param unknown $key
|
|
|
|
|
* @param unknown $start
|
|
|
|
|
* @param unknown $end
|
|
|
|
|
*/
|
|
|
|
|
public function lRange($key,$start,$end)
|
|
|
|
|
{
|
|
|
|
|
return $this->redis->lrange($key,$start,$end);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 返回队列中指定索引的元素
|
|
|
|
|
* @param unknown $key
|
|
|
|
|
* @param unknown $index
|
|
|
|
|
*/
|
|
|
|
|
public function lIndex($key,$index)
|
|
|
|
|
{
|
|
|
|
|
return $this->redis->lIndex($key,$index);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 设定队列中指定index的值。
|
|
|
|
|
* @param unknown $key
|
|
|
|
|
* @param unknown $index
|
|
|
|
|
* @param unknown $value
|
|
|
|
|
*/
|
|
|
|
|
public function lSet($key,$index,$value)
|
|
|
|
|
{
|
|
|
|
|
return $this->redis->lSet($key,$index,$value);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 删除值为vaule的count个元素
|
|
|
|
|
* PHP-REDIS扩展的数据顺序与命令的顺序不太一样,不知道是不是bug
|
|
|
|
|
* count>0 从尾部开始
|
|
|
|
|
* >0 从头部开始
|
|
|
|
|
* =0 删除全部
|
|
|
|
|
* @param unknown $key
|
|
|
|
|
* @param unknown $count
|
|
|
|
|
* @param unknown $value
|
|
|
|
|
*/
|
|
|
|
|
public function lRem($key,$count,$value)
|
|
|
|
|
{
|
|
|
|
|
return $this->redis->lRem($key,$value,$count);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 删除并返回队列中的头元素。
|
|
|
|
|
* @param unknown $key
|
|
|
|
|
*/
|
|
|
|
|
public function lPop($key)
|
|
|
|
|
{
|
|
|
|
|
return $this->redis->lPop($key);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 删除并返回队列中的尾元素
|
|
|
|
|
* @param unknown $key
|
|
|
|
|
*/
|
|
|
|
|
public function rPop($key)
|
|
|
|
|
{
|
|
|
|
|
return $this->redis->rPop($key);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/*************redis字符串操作命令*****************/
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 设置一个key
|
|
|
|
|
* @param unknown $key
|
|
|
|
|
* @param unknown $value
|
|
|
|
|
*/
|
|
|
|
|
public function set($key,$value)
|
|
|
|
|
{
|
|
|
|
|
return $this->redis->set($key,$value);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 得到一个key
|
|
|
|
|
* @param unknown $key
|
|
|
|
|
*/
|
|
|
|
|
public function get($key)
|
|
|
|
|
{
|
|
|
|
|
return $this->redis->get($key);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 批量获取所有key值
|
|
|
|
|
* @param unknown $key
|
|
|
|
|
*/
|
|
|
|
|
public function mget($key){
|
|
|
|
|
return $this->redis->mget($key);
|
|
|
|
|
}
|
|
|
|
|
/**
|
|
|
|
|
* 设置一个有过期时间的key
|
|
|
|
|
* @param unknown $key
|
|
|
|
|
* @param unknown $expire
|
|
|
|
|
* @param unknown $value
|
|
|
|
|
*/
|
|
|
|
|
public function setex($key,$expire,$value)
|
|
|
|
|
{
|
|
|
|
|
return $this->redis->setex($key,$expire,$value);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 设置一个key,如果key存在,不做任何操作.
|
|
|
|
|
* @param unknown $key
|
|
|
|
|
* @param unknown $value
|
|
|
|
|
*/
|
|
|
|
|
public function setnx($key,$value)
|
|
|
|
|
{
|
|
|
|
|
return $this->redis->setnx($key,$value);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 批量设置key
|
|
|
|
|
* @param unknown $arr
|
|
|
|
|
*/
|
|
|
|
|
public function mset($arr)
|
|
|
|
|
{
|
|
|
|
|
return $this->redis->mset($arr);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/*************redis 无序集合操作命令*****************/
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 返回集合中所有元素
|
|
|
|
|
* @param unknown $key
|
|
|
|
|
*/
|
|
|
|
|
public function sMembers($key)
|
|
|
|
|
{
|
|
|
|
|
return $this->redis->sMembers($key);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
public function sIsMember($key, $v)
|
|
|
|
|
{
|
|
|
|
|
return $this->redis->sIsMember($key, $v);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 求2个集合的差集
|
|
|
|
|
* @param unknown $key1
|
|
|
|
|
* @param unknown $key2
|
|
|
|
|
*/
|
|
|
|
|
public function sDiff($key1,$key2)
|
|
|
|
|
{
|
|
|
|
|
return $this->redis->sDiff($key1,$key2);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 添加集合。由于版本问题,扩展不支持批量添加。这里做了封装
|
|
|
|
|
* @param unknown $key
|
|
|
|
|
* @param string|array $value
|
|
|
|
|
*/
|
|
|
|
|
public function sAdd($key,$value)
|
|
|
|
|
{
|
|
|
|
|
if(!is_array($value))
|
|
|
|
|
$arr=array($value);
|
|
|
|
|
else
|
|
|
|
|
$arr=$value;
|
|
|
|
|
foreach($arr as $row)
|
|
|
|
|
$this->redis->sAdd($key,$row);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 返回无序集合的元素个数
|
|
|
|
|
* @param unknown $key
|
|
|
|
|
*/
|
|
|
|
|
public function scard($key)
|
|
|
|
|
{
|
|
|
|
|
return $this->redis->scard($key);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 从集合中删除一个元素
|
|
|
|
|
* @param unknown $key
|
|
|
|
|
* @param unknown $value
|
|
|
|
|
*/
|
|
|
|
|
public function srem($key,$value)
|
|
|
|
|
{
|
|
|
|
|
return $this->redis->srem($key,$value);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/*************redis管理操作命令*****************/
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 选择数据库
|
|
|
|
|
* @param int $dbId 数据库ID号
|
|
|
|
|
* @return bool
|
|
|
|
|
*/
|
|
|
|
|
public function select($dbId)
|
|
|
|
|
{
|
|
|
|
|
$this->dbId=$dbId;
|
|
|
|
|
return $this->redis->select($dbId);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 清空当前数据库
|
|
|
|
|
* @return bool
|
|
|
|
|
*/
|
|
|
|
|
public function flushDB()
|
|
|
|
|
{
|
|
|
|
|
return $this->redis->flushDB();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 返回当前库状态
|
|
|
|
|
* @return array
|
|
|
|
|
*/
|
|
|
|
|
public function info()
|
|
|
|
|
{
|
|
|
|
|
return $this->redis->info();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 同步保存数据到磁盘
|
|
|
|
|
*/
|
|
|
|
|
public function save()
|
|
|
|
|
{
|
|
|
|
|
return $this->redis->save();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 异步保存数据到磁盘
|
|
|
|
|
*/
|
|
|
|
|
public function bgSave()
|
|
|
|
|
{
|
|
|
|
|
return $this->redis->bgSave();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 返回最后保存到磁盘的时间
|
|
|
|
|
*/
|
|
|
|
|
public function lastSave()
|
|
|
|
|
{
|
|
|
|
|
return $this->redis->lastSave();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 返回key,支持*多个字符,?一个字符
|
|
|
|
|
* 只有* 表示全部
|
|
|
|
|
* @param string $key
|
|
|
|
|
* @return array
|
|
|
|
|
*/
|
|
|
|
|
public function keys($key)
|
|
|
|
|
{
|
|
|
|
|
return $this->redis->keys($key);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 删除指定key
|
|
|
|
|
* @param unknown $key
|
|
|
|
|
*/
|
|
|
|
|
public function del($key)
|
|
|
|
|
{
|
|
|
|
|
return $this->redis->del($key);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 判断一个key值是不是存在
|
|
|
|
|
* @param unknown $key
|
|
|
|
|
*/
|
|
|
|
|
public function exists($key)
|
|
|
|
|
{
|
|
|
|
|
return $this->redis->exists($key);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 为一个key设定过期时间 单位为秒
|
|
|
|
|
* @param unknown $key
|
|
|
|
|
* @param unknown $expire
|
|
|
|
|
*/
|
|
|
|
|
public function expire($key,$expire)
|
|
|
|
|
{
|
|
|
|
|
return $this->redis->expire($key,$expire);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 返回一个key还有多久过期,单位秒
|
|
|
|
|
* @param unknown $key
|
|
|
|
|
*/
|
|
|
|
|
public function ttl($key)
|
|
|
|
|
{
|
|
|
|
|
return $this->redis->ttl($key);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 设定一个key什么时候过期,time为一个时间戳
|
|
|
|
|
* @param unknown $key
|
|
|
|
|
* @param unknown $time
|
|
|
|
|
*/
|
|
|
|
|
public function exprieAt($key,$time)
|
|
|
|
|
{
|
|
|
|
|
return $this->redis->expireAt($key,$time);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 关闭服务器链接
|
|
|
|
|
*/
|
|
|
|
|
public function close()
|
|
|
|
|
{
|
|
|
|
|
return $this->redis->close();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 关闭所有连接
|
|
|
|
|
*/
|
|
|
|
|
public static function closeAll()
|
|
|
|
|
{
|
|
|
|
|
foreach(static::$_instance as $o)
|
|
|
|
|
{
|
|
|
|
|
if($o instanceof self)
|
|
|
|
|
$o->close();
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/** 这里不关闭连接,因为session写入会在所有对象销毁之后。
|
|
|
|
|
public function __destruct()
|
|
|
|
|
{
|
|
|
|
|
return $this->redis->close();
|
|
|
|
|
}
|
|
|
|
|
**/
|
|
|
|
|
/**
|
|
|
|
|
* 返回当前数据库key数量
|
|
|
|
|
*/
|
|
|
|
|
public function dbSize()
|
|
|
|
|
{
|
|
|
|
|
return $this->redis->dbSize();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 返回一个随机key
|
|
|
|
|
*/
|
|
|
|
|
public function randomKey()
|
|
|
|
|
{
|
|
|
|
|
return $this->redis->randomKey();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 得到当前数据库ID
|
|
|
|
|
* @return int
|
|
|
|
|
*/
|
|
|
|
|
public function getDbId()
|
|
|
|
|
{
|
|
|
|
|
return $this->dbId;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 返回当前密码
|
|
|
|
|
*/
|
|
|
|
|
public function getAuth()
|
|
|
|
|
{
|
|
|
|
|
return $this->auth;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
public function getHost()
|
|
|
|
|
{
|
|
|
|
|
return $this->host;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
public function getPort()
|
|
|
|
|
{
|
|
|
|
|
return $this->port;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
public function getConnInfo()
|
|
|
|
|
{
|
|
|
|
|
return array(
|
|
|
|
|
'host'=>$this->host,
|
|
|
|
|
'port'=>$this->port,
|
|
|
|
|
'auth'=>$this->auth
|
|
|
|
|
);
|
|
|
|
|
}
|
|
|
|
|
/*********************事务的相关方法************************/
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 监控key,就是一个或多个key添加一个乐观锁
|
|
|
|
|
* 在此期间如果key的值如果发生的改变,刚不能为key设定值
|
|
|
|
|
* 可以重新取得Key的值。
|
|
|
|
|
* @param unknown $key
|
|
|
|
|
*/
|
|
|
|
|
public function watch($key)
|
|
|
|
|
{
|
|
|
|
|
return $this->redis->watch($key);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 取消当前链接对所有key的watch
|
|
|
|
|
* EXEC 命令或 DISCARD 命令先被执行了的话,那么就不需要再执行 UNWATCH 了
|
|
|
|
|
*/
|
|
|
|
|
public function unwatch()
|
|
|
|
|
{
|
|
|
|
|
return $this->redis->unwatch();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 开启一个事务
|
|
|
|
|
* 事务的调用有两种模式Redis::MULTI和Redis::PIPELINE,
|
|
|
|
|
* 默认是Redis::MULTI模式,
|
|
|
|
|
* Redis::PIPELINE管道模式速度更快,但没有任何保证原子性有可能造成数据的丢失
|
|
|
|
|
*/
|
|
|
|
|
public function multi($type=\Redis::MULTI)
|
|
|
|
|
{
|
|
|
|
|
return $this->redis->multi($type);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 执行一个事务
|
|
|
|
|
* 收到 EXEC 命令后进入事务执行,事务中任意命令执行失败,其余的命令依然被执行
|
|
|
|
|
*/
|
|
|
|
|
public function exec()
|
|
|
|
|
{
|
|
|
|
|
return $this->redis->exec();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 回滚一个事务
|
|
|
|
|
*/
|
|
|
|
|
public function discard()
|
|
|
|
|
{
|
|
|
|
|
return $this->redis->discard();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 测试当前链接是不是已经失效
|
|
|
|
|
* 没有失效返回+PONG
|
|
|
|
|
* 失效返回false
|
|
|
|
|
*/
|
|
|
|
|
public function ping()
|
|
|
|
|
{
|
|
|
|
|
return $this->redis->ping();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
public function auth($auth)
|
|
|
|
|
{
|
|
|
|
|
return $this->redis->auth($auth);
|
|
|
|
|
}
|
|
|
|
|
/*********************自定义的方法,用于简化操作************************/
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 得到一组的ID号
|
|
|
|
|
* @param unknown $prefix
|
|
|
|
|
* @param unknown $ids
|
|
|
|
|
*/
|
|
|
|
|
public function hashAll($prefix,$ids)
|
|
|
|
|
{
|
|
|
|
|
if($ids==false)
|
|
|
|
|
return false;
|
|
|
|
|
if(is_string($ids))
|
|
|
|
|
$ids=explode(',', $ids);
|
|
|
|
|
$arr=array();
|
|
|
|
|
foreach($ids as $id)
|
|
|
|
|
{
|
|
|
|
|
$key=$prefix.'.'.$id;
|
|
|
|
|
$res=$this->hGetAll($key);
|
|
|
|
|
if($res!=false)
|
|
|
|
|
$arr[]=$res;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return $arr;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 生成一条消息,放在redis数据库中。使用0号库。
|
|
|
|
|
* @param string|array $msg
|
|
|
|
|
*/
|
|
|
|
|
public function pushMessage($lkey,$msg)
|
|
|
|
|
{
|
|
|
|
|
if(is_array($msg)){
|
|
|
|
|
$msg = json_encode($msg);
|
|
|
|
|
}
|
|
|
|
|
$key = md5($msg);
|
|
|
|
|
|
|
|
|
|
//如果消息已经存在,删除旧消息,已当前消息为准
|
|
|
|
|
//echo $n=$this->lRem($lkey, 0, $key)."\n";
|
|
|
|
|
//重新设置新消息
|
|
|
|
|
$this->lPush($lkey, $key);
|
|
|
|
|
$this->setex($key, 3600, $msg);
|
|
|
|
|
return $key;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 得到条批量删除key的命令
|
|
|
|
|
* @param unknown $keys
|
|
|
|
|
* @param unknown $dbId
|
|
|
|
|
*/
|
|
|
|
|
public function delKeys($keys,$dbId)
|
|
|
|
|
{
|
|
|
|
|
$redisInfo=$this->getConnInfo();
|
|
|
|
|
$cmdArr=array(
|
|
|
|
|
'redis-cli',
|
|
|
|
|
'-a',
|
|
|
|
|
$redisInfo['auth'],
|
|
|
|
|
'-h',
|
|
|
|
|
$redisInfo['host'],
|
|
|
|
|
'-p',
|
|
|
|
|
$redisInfo['port'],
|
|
|
|
|
'-n',
|
|
|
|
|
$dbId,
|
|
|
|
|
);
|
|
|
|
|
$redisStr=implode(' ', $cmdArr);
|
|
|
|
|
$cmd="{$redisStr} KEYS \"{$keys}\" | xargs {$redisStr} del";
|
|
|
|
|
return $cmd;
|
|
|
|
|
}
|
|
|
|
|
}
|