报表的缓存基本存储和读写,报表缓存读写
<?<span>php </span><span>/*</span><span>* * Class Rpt redis 用于报表的缓存基本存储和读写 2.0 * @simple * Rpt::read("diamond.account",$nick); * Rpt::readSync("diamond.account",$nick); * $finder = Rpt::createFinder("diamond.account",$nick); * $finder->read(); * $finder->readSync(); * * Rpt::save("diamond.account",$nick,$data); * $storage = Rpt::createStorage("diamond.account",$nick); * $storage->save($data); * $storage->save($data,7200); </span><span>*/</span> <span>class</span><span> Rpt { </span><span>public</span> <span>static</span> <span>function</span> read(<span>$key</span>,<span>$nick</span><span>){ </span><span>$finder</span> = self::createFinder(<span>$key</span>,<span>$nick</span><span>); </span><span>return</span> <span>$finder</span>-><span>read(); } </span><span>public</span> <span>static</span> <span>function</span> readSync(<span>$key</span>,<span>$nick</span><span>){ </span><span>$finder</span> = self::createFinder(<span>$key</span>,<span>$nick</span><span>); </span><span>return</span> <span>$finder</span>-><span>readSync(); } </span><span>public</span> <span>static</span> <span>function</span> createFinder(<span>$key</span>,<span>$nick</span><span>){ </span><span>$key</span> = RptGenerate::<span>key</span>(<span>$key</span>,<span>$nick</span><span>); </span><span>return</span> <span>new</span> RptFinder(<span>$key</span><span>); } </span><span>public</span> <span>static</span> <span>function</span> createStorage(<span>$key</span>,<span>$nick</span><span>){ </span><span>$key</span> = RptGenerate::<span>key</span>(<span>$key</span>,<span>$nick</span><span>); </span><span>return</span> <span>new</span> RptStorage(<span>$key</span><span>); } </span><span>public</span> <span>static</span> <span>function</span> save(<span>$key</span>,<span>$nick</span>,<span>$data</span>,<span>$expired</span>=7200<span>){ </span><span>$storage</span> = self::createStorage(<span>$key</span>,<span>$nick</span><span>); </span><span>return</span> <span>$storage</span>->save(<span>$data</span>,<span>$expired</span><span>); } </span><span>public</span> <span>static</span> <span>function</span><span> createRedis(){ </span><span>$redis</span> = <span>new</span><span> Redis(); </span><span>$redis</span>->connect(Yii::app()->params["RedisServerIP"<span>]); </span><span>return</span> <span>$redis</span><span>; } } </span><span>/*</span><span>* * Class RptFinder 数据读取 </span><span>*/</span> <span>class</span><span> RptFinder { </span><span>/*</span><span>* * @var string $key </span><span>*/</span> <span>public</span> <span>$key</span><span>; </span><span>/*</span><span>* * @param string $key </span><span>*/</span> <span>public</span> <span>function</span> __construct(<span>$key</span><span>){ </span><span>$this</span>-><span>key</span> = <span>$key</span><span>; } </span><span>/*</span><span>* * 非安全读取数据 * @return mixed </span><span>*/</span> <span>public</span> <span>function</span><span> read(){ </span><span>$data</span> = <span>$this</span>-><span>readData(); </span><span>if</span>(<span>$data</span>->isRead && !<span>$data</span>-><span>isExpired()) </span><span>return</span> <span>$data</span>-><span>data; </span><span>return</span> <span>null</span><span>; } </span><span>protected</span> <span>function</span><span> readData(){ </span><span>$redis</span> = Rpt::<span>createRedis(); </span><span>$rptData</span> = <span>new</span><span> RptData(); </span><span>$data</span> = json_decode(<span>$redis</span>->get(<span>$this</span>-><span>key</span><span>)); </span><span>if</span>(<span>false</span> == <span>$data</span><span>){ </span><span>$rptData</span>->isRead = <span>false</span><span>; </span><span>$rptData</span>->expiredTime = <span>time</span><span>(); </span><span>$rptData</span>->expired = 24*3600<span>; }</span><span>else</span><span>{ </span><span>$rptData</span>->expired = <span>$data</span>-><span>expired; </span><span>$rptData</span>->isRead = <span>$data</span>-><span>isRead; </span><span>$rptData</span>->expiredTime = <span>$data</span>-><span>expiredTime; </span><span>$rptData</span>->data = <span>$data</span>-><span>data; } </span><span>return</span> <span>$rptData</span><span>; } </span><span>/*</span><span>* * 同步读取数据 * @return mixed </span><span>*/</span> <span>public</span> <span>function</span><span> readSync(){ </span><span>while</span>(<span>true</span><span>){ </span><span>$rptData</span> = <span>$this</span>-><span>readData(); </span><span>if</span>(<span>$rptData</span>->isRead && !<span>$rptData</span>-><span>isExpired()) </span><span>return</span> <span>$this</span>-><span>read(); </span><span>sleep</span>(1<span>); } } } </span><span>/*</span><span>* * Class RptStorage 数据存储 </span><span>*/</span> <span>class</span><span> RptStorage { </span><span>/*</span><span>* * @var string key </span><span>*/</span> <span>public</span> <span>$key</span><span>; </span><span>/*</span><span>* * @param string $key </span><span>*/</span> <span>public</span> <span>function</span> __construct(<span>$key</span><span>){ </span><span>$this</span>-><span>key</span> = <span>$key</span><span>; } </span><span>/*</span><span>* * 写入数据 * @param $data * @param int $expired * @return bool </span><span>*/</span> <span>public</span> <span>function</span> save(<span>$data</span>,<span>$expired</span>=7200<span>){ </span><span>$rptData</span> = <span>new</span><span> RptData(); </span><span>$rptData</span>->data = <span>$data</span><span>; </span><span>$rptData</span>->expiredTime = <span>time</span><span>(); </span><span>$rptData</span>->isRead = <span>true</span><span>; </span><span>$rptData</span>->expired = <span>$expired</span><span>; </span><span>$redis</span> = Rpt::<span>createRedis(); </span><span>return</span> <span>$redis</span>->setex(<span>$this</span>-><span>key</span>, <span>$rptData</span>->expired,json_encode(<span>$rptData</span><span>)); } } </span><span>/*</span><span>* * Class RptData redis存储数据实体 </span><span>*/</span> <span>class</span><span> RptData { </span><span>public</span> <span>$expired</span><span>; </span><span>public</span> <span>$expiredTime</span><span>; </span><span>public</span> <span>$data</span><span>; </span><span>public</span> <span>$isRead</span><span>; </span><span>public</span> <span>function</span><span> isExpired(){ </span><span>if</span>(<span>time</span>()-<span>$this</span>->expiredTime > <span>$this</span>-><span>expired) </span><span>return</span> <span>true</span><span>; </span><span>return</span> <span>false</span><span>; } } </span><span>/*</span><span>* * Class RptGenerate key生成 </span><span>*/</span> <span>class</span><span> RptGenerate { </span><span>public</span> <span>static</span> <span>function</span> <span>key</span>(<span>$key</span>,<span>$nick</span><span>){ </span><span>return</span> <span>$key</span>.".".<span>md5</span>(<span>$nick</span><span>); } }</span>

phpsessionstrackuserdataacrossmultiplepagerequestsusingauniqueIdStoredInAcookie.here'showtomanageThemeffectionaly:1)startAsessionWithSessionWwithSession_start()和stordoredAtain $ _session.2)

在PHP中,遍歷會話數據可以通過以下步驟實現:1.使用session_start()啟動會話。 2.通過foreach循環遍歷$_SESSION數組中的所有鍵值對。 3.處理複雜數據結構時,使用is_array()或is_object()函數,並用print_r()輸出詳細信息。 4.優化遍歷時,可採用分頁處理,避免一次性處理大量數據。這將幫助你在實際項目中更有效地管理和使用PHP會話數據。

會話通過服務器端的狀態管理機制實現用戶認證。 1)會話創建並生成唯一ID,2)ID通過cookies傳遞,3)服務器存儲並通過ID訪問會話數據,4)實現用戶認證和狀態管理,提升應用安全性和用戶體驗。

Tostoreauser'snameinaPHPsession,startthesessionwithsession_start(),thenassignthenameto$_SESSION['username'].1)Usesession_start()toinitializethesession.2)Assigntheuser'snameto$_SESSION['username'].Thisallowsyoutoaccessthenameacrossmultiplepages,enhanc

PHPSession失效的原因包括配置錯誤、Cookie問題和Session過期。 1.配置錯誤:檢查並設置正確的session.save_path。 2.Cookie問題:確保Cookie設置正確。 3.Session過期:調整session.gc_maxlifetime值以延長會話時間。

在PHP中調試會話問題的方法包括:1.檢查會話是否正確啟動;2.驗證會話ID的傳遞;3.檢查會話數據的存儲和讀取;4.查看服務器配置。通過輸出會話ID和數據、查看會話文件內容等方法,可以有效診斷和解決會話相關的問題。

多次調用session_start()會導致警告信息和可能的數據覆蓋。 1)PHP會發出警告,提示session已啟動。 2)可能導致session數據意外覆蓋。 3)使用session_status()檢查session狀態,避免重複調用。

在PHP中配置會話生命週期可以通過設置session.gc_maxlifetime和session.cookie_lifetime來實現。 1)session.gc_maxlifetime控制服務器端會話數據的存活時間,2)session.cookie_lifetime控制客戶端cookie的生命週期,設置為0時cookie在瀏覽器關閉時過期。


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