有个页面的功能是进行数据运算但是耗时时间较长,经常是没有等计算结果出来前就报让保存此页面的对话框,请问如何解决此问题(不要弹出保存页面的对话框,无论多长时间都继续等待)
回复讨论(解决方案)
页头加上:set_time_limit(0) ; 看看
不行的,和之前一样
对话框时哪来的?
贴个截图看看
就相当于你在浏览器地址栏属于一个http://127.0.0.1/1.php本来是打开请求1.php页面的,但是却弹出让你保存1.php文件到磁盘上的对话框
就相当于你在浏览器地址栏属于一个http://127.0.0.1/1.php本来是打开请求1.php页面的,但是却弹出让你保存1.php文件到磁盘上的对话框
这是浏览器问题吧?1.php贴代码出来看看.
就相当于你在浏览器地址栏属于一个http://127.0.0.1/1.php本来是打开请求1.php页面的,但是却弹出让你保存1.php文件到磁盘上的对话框 那就是你根本就没有配置好 php 支持
这个是需要在apache里配置好 apache支持打开php文件的,
打开http.conf,在里面添加上一行 :AddType application/x-httpd-php .php
然后重启apache,再打开你的PHP页面看看?
不是这样的。我的1.php里 如果只写 echo "ok";
那么是可以正常显示OK的,但是如果我的1.php里解一个循环100万次的语句,并且每个循环间还sleep下(为了模拟1.php是一个会消耗较长时间的处理过程),那么很可能会在一段时间后蹦出提示框要保存此页面
关于页面超时在哪里设?
set_time_limit(0);

In PHP, you can use session_status() or session_id() to check whether the session has started. 1) Use the session_status() function. If PHP_SESSION_ACTIVE is returned, the session has been started. 2) Use the session_id() function, if a non-empty string is returned, the session has been started. Both methods can effectively check the session state, and choosing which method to use depends on the PHP version and personal preferences.

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Managing concurrent session access in PHP can be done by the following methods: 1. Use the database to store session data, 2. Use Redis or Memcached, 3. Implement a session locking strategy. These methods help ensure data consistency and improve concurrency performance.

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Load balancing affects session management, but can be resolved with session replication, session stickiness, and centralized session storage. 1. Session Replication Copy session data between servers. 2. Session stickiness directs user requests to the same server. 3. Centralized session storage uses independent servers such as Redis to store session data to ensure data sharing.

Sessionlockingisatechniqueusedtoensureauser'ssessionremainsexclusivetooneuseratatime.Itiscrucialforpreventingdatacorruptionandsecuritybreachesinmulti-userapplications.Sessionlockingisimplementedusingserver-sidelockingmechanisms,suchasReentrantLockinJ

Alternatives to PHP sessions include Cookies, Token-based Authentication, Database-based Sessions, and Redis/Memcached. 1.Cookies manage sessions by storing data on the client, which is simple but low in security. 2.Token-based Authentication uses tokens to verify users, which is highly secure but requires additional logic. 3.Database-basedSessions stores data in the database, which has good scalability but may affect performance. 4. Redis/Memcached uses distributed cache to improve performance and scalability, but requires additional matching

Sessionhijacking refers to an attacker impersonating a user by obtaining the user's sessionID. Prevention methods include: 1) encrypting communication using HTTPS; 2) verifying the source of the sessionID; 3) using a secure sessionID generation algorithm; 4) regularly updating the sessionID.


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