// +---------------------------------------------------------------------- namespace Think\Cache\Driver; use Think\Cache; defined('THINK_PATH') or exit(); /** * Redis缓存驱动 * 要求安装phpredis扩展:https://github.com/nicolasff/phpredis */ class Redis extends Cache { /** * 架构函数 * @param array $options 缓存参数 * @access public */ public function __construct($options=array()) { if ( !extension_loaded('redis') ) { E(L('_NOT_SUPPORT_').':redis'); } $options = array_merge(array ( 'host' => C('REDIS_HOST') ? : '127.0.0.1', 'port' => C('REDIS_PORT') ? : 6379, 'auth' => C('REDIS_AUTH') ? : null, 'timeout' => C('DATA_CACHE_TIMEOUT') ? : false, 'persistent' => false, ),$options); $this->options = $options; $this->options['expire'] = isset($options['expire'])? $options['expire'] : C('DATA_CACHE_TIME'); $this->options['prefix'] = isset($options['prefix'])? $options['prefix'] : C('DATA_CACHE_PREFIX'); $this->options['length'] = isset($options['length'])? $options['length'] : 0; $func = $options['persistent'] ? 'pconnect' : 'connect'; $this->handler = new \Redis; $options['timeout'] === false ? $this->handler->$func($options['host'], $options['port']) : $this->handler->$func($options['host'], $options['port'], $options['timeout']); //支持认证模式 @author 1135 if($this->options['auth']!=null) { $this->handler->auth($this->options['auth']); } //支持选择实例 @author 1135 $this->options['db'] = isset($this->options['db']) ? $this->options['db'] : 0; $this->handler->select($this->options['db']); } /** * 读取缓存 * @access public * @param string $name 缓存变量名 * @return mixed public function get($name) { N('cache_read',1); $value = $this->handler->get($this->options['prefix'].$name); $jsonData = json_decode( $value, true ); return ($jsonData === NULL) ? $value : $jsonData; //检测是否为JSON数据 true 返回JSON解析数组, false返回源数据 }*/ /** * 删除缓存 * @access public * @param string $name 缓存变量名 * @return boolean */ public function rm($name) { return $this->handler->delete($this->options['prefix'].$name); } /** * 清除缓存 * @access public * @return boolean */ public function clear() { return $this->handler->flushDB(); } }