/**
* 设置过期时间戳
* @param string $key 键名
* @param int $time 过期时间戳
* @return boolean 是否成功
*/
public function expireAt($key, $time)
{
$difftime = $time - time();
if ($this->driver->checkDriver()) {
if ($difftime) {
return $this->driver->expire($key, $difftime);
} else {
return $this->driver->del($key);
}
}
if ($this->driver->isFallback() && $this->type !== self::$config['fallback']) {
return $this->driver->backup()->expireAt($key, $time);
}
return false;
}
