$cacheTime = sprintf('%011d', $cacheTime);
return file_put_contents($this->fileName, $cacheTime . json_encode($value));
} else {
if ($this->fileName) {
//删除缓存文件
unlink($this->fileName);
}
}
} catch (Exception $e) {
throw $e;
}
}
//获取换缓存的方法、
public function getCache($key)
{
$this->fileName = $this->dir . $key . self::EXT;
$contents = file_get_contents($this->fileName);
$time = substr($contents, 0, 11);
$value = substr($contents, 11);
if ($time + filemtime($this->fileName) < time()) {
echo '缓存已经过期';
unlink($this->fileName);
return false;
}
return $value;
}
}
$cache = new FileCache();
//$cache->setCache('as','ajksdfhka',10);
echo $cache->getCache('as');
