redis操作类（支持主从）

<!--?php
$CONFIG_REDIS_DEFAULT = array(
'master' =--> array('127.0.0.1',6379),
'slaver'  => array('127.0.0.1',6379)
);
?>

操作类：

<!--?php
class FSRedis {
const RD_MASTER = 'master';
const RD_SLAVER = 'slaver';
//默认key
private static $mKey = '';
//实例对象
private static $mInstance = array();
//服务器配置
private $_serverConfig = array(); 
private $_redisMaster;
private $_redisSlaver;
public static function Instance($defaultConfig = array()) {
self::$mKey = md5(serialize($defaultConfig));
if (isset( self::$mInstance[self::$mKey])) {
return self::$mInstance[self::$mKey];
}
return self::$mInstance[self::$mKey] = new FSRedis($defaultConfig);
}
public function __construct($defaultConfig = array()) {
$this--->_serverConfig = $defaultConfig;
}
private function createRedisInstance($config = array()) {
if (count($config) < 2) {
throw new Exception(strtr('Config invalid', array()));
}
$redis = new Redis();
$redis->connect($config[0], $config[1]);
return $redis;
}
public function getRedisMaster() {
if ($this->_redisMaster === null) {
$this->_redisMaster = $this->createRedisInstance($this->_serverConfig[self::RD_MASTER]) ;
}
return $this->_redisMaster;
}
public function getRedisSlave() {
if ($this->_redisSlaver === null) {
$this->_redisSlaver = $this->createRedisInstance($this->_serverConfig[self::RD_SLAVER]) ;
}
return $this->_redisSlaver;
}
public function get($key, $master = false) {
if(empty($key)) {
return false;
}
$func = is_array($key) ? 'mGet' : 'get';
if($master) {
$redis = $this->getRedisMaster();
}else{
$redis = $this->getRedisSlave();
}
if(!$redis) {
return false;
}
$value = $redis->$func($key);
if($value === false) {
return false;
}
return $value;
}
public function set($key, $value, $expire = 0) {
if(empty($key)) {
return false;
}
$redis = $this->getRedisMaster();
if(!$redis) {
return false;
}
if($expire) {
$ret = $redis->setex($key, $expire, $value);
}
else {
$ret = $redis->set($key, $value);
}
if($ret === false) {
return false;
}
return $ret;
}
    
    /**
     * 条件形式设置缓存，如果 key 不存时就设置，存在时设置失败
     *
     * @param string $key 缓存KEY
     * @param string $value 缓存值
     * @return boolean
     */
public function setnx($key, $value){
        return $this->getRedisMaster()->setnx($key, $value);
    }
       
    /**
     * 删除缓存
     *
     * @param string || array $key 缓存KEY，支持单个健:"key1" 或多个健:array('key1','key2')
     * @return int 删除的健的数量
     */
 public function remove($key){
return $this->getRedisMaster()->delete($key);
    }
       
    public function __call($name,$value) {
/**
 * 读写分离
 */
$redisWrite = array('zAdd','zRem','hIncrBy','info','rename', 'rpush', 'lpop','hMset', 'sadd', 'srem', 'incr', 'spop');
$redisRead = array('zCard','zRank','zrevRank','zRevRange','hLen','hKeys','hVals','zRange','hMget','hGetAll', 'lrange', 'llen','mGet', 'smembers', 'sismember', 'scard', 'keys');
if(in_array($name,$redisWrite)) { //master
$redis = $this->getRedisMaster();
return call_user_func_array(array($redis,$name),$value);
}
elseif(in_array($name,$redisRead)) { //slave
$redis = $this->_getRedisSlave();
return call_user_func_array(array($redis,$name),$value);
}
}
}
?>

以上就介绍了redis操作类（支持主从），包括了方面的内容，希望对PHP教程有兴趣的朋友有所帮助。