PHP Page Cache 页面缓存类 (3)

                {
                    @flock( $hanld, LOCK_EX);
                     $_PutData = @fwrite( $hanld, $PutData);
                    @flock( $hanld, LOCK_UN);
                    if(! $_PutData)
                    {
                         $this->ErrResponse(’无法更改当前缓存文件内容’);
                        return false;
                    } else {
                        @fclose( $hanld);
                        return true;
                    }
                } else {
                     $this->ErrResponse(’缓存文件不可写’);
                    return false;
                }
            } else {     $this->ErrResponse(’打开缓存文件发生致命错误’);
                return false;
            }
        }
    }

    public function GetCacheData()
    {
         $hanld = @fopen( $this->CacheFileUrl,"r");
        if( $hanld)
        {
            if(@is_readable( $this->CacheFileUrl))
            {
                 $this->CacheToPage = @file_get_contents( $this->CacheFileUrl);
                 $IsEmpty = count(file( $this->CacheFileUrl));  //判断缓存文件是否为空
                if( $IsEmpty > 0)
                {
                    echo  $this->CacheToPage;
                    @fclose( $hanld);
                      ob_end_flush();
                      exit();
                }
            } else {
                 $this->ErrResponse(’读取缓存文件内容失败’);
                return false;     }