本文实例讲述了php文件缓存类用法。分享给大家供大家参考。具体如下：
cache_dir = isset($cache_dir) ? $cache_dir : $this->cache_dir; $this->cache_time = isset($cache_time) ? $cache_time : $this->cache_time; } public function saveCache ($key, $value){ if (is_dir($this->cache_dir)){ $cache_file = $this->cache_dir . '/xzcache_' . md5($key); $timedif = @(time() - filemtime($cache_file)); if ($timedif >= $this->cache_time) { // cached file is too old, create new $serialized = serialize($value); if ($f = @fopen($cache_file, 'w')) { fwrite ($f, $serialized, strlen($serialized)); fclose($f); } } $result = 1; }else{ <strong style="color:transparent">本文来源gaodai#ma#com搞@@代~&码*网/</strong><strong>搞gaodaima代码</strong> echo "Error:dir is not exist."; $result = 0; } return $result; } /** * @return array * 0 no cache * 1 cached * 2 overdue */ public function getCache ($key) { $cache_file = $this->cache_dir . '/xzcache_' . md5($key); if (is_dir($this->cache_dir) && is_file($cache_file)) { $timedif = @(time() - filemtime($cache_file)); if ($timedif >= $this->cache_time) { $result['cached'] = 2; }else{ // cached file is fresh enough, return cached array $result['value'] = unserialize(file_get_contents($cache_file)); $result['cached'] = 1; } }else { echo "Error:no cache"; $result['cached'] = 0; } return $result; }} //end of class
用法示例如下：
$cache = new XZCache();$key = 'global';$value = $GLOBALS;$cache->saveCache($key, $value);$result = $cache->getCache($key);var_dump($result);
希望本文所述对大家的php程序设计有所帮助。
搞代码网（gaodaima.com）提供的所有资源部分来自互联网，如果有侵犯您的版权或其他权益，请说明详细缘由并提供版权或权益证明然后发送到邮箱[email protected]，我们会在看到邮件的第一时间内为您处理，或直接联系QQ：872152909。本网站采用BY-NC-SA协议进行授权
转载请注明原文链接：php文件缓存类用法实例分析_PHP
转载请注明原文链接：php文件缓存类用法实例分析_PHP
