Store a user's information, change the user session settings, and all pages can be used. This article mainly shares with you the principles of PHP Session development and detailed usage instructions. I hope it can help you.
PHP Session variable
Open the program, make some changes, then save and exit. It's just a session. The server can know who is operating through the session.
Working mechanism: Create a uid for the visitor, store variables according to this uid, the uid is stored in a cookie, or URL transmission.
Related topic recommendations: php session (including pictures, texts, videos, cases)
Use PHP Session
Start the session before storing user information in the session
Note: The session_start() function must be located before the tag:
<?php session_start(); ?><html><body></body></html>
Register the user session with the server , convenient for saving user information, and assigning a uid to the user session
Storage Session variable
To store and obtain session, use $_SESSION
<?phpsession_start();// 存储 session 数据if(isset($_SESSION['views']))
{ $_SESSION['views']=$_SESSION['views']+1;
}else{ $_SESSION['views']=9999;
}?><html><head><meta charset="utf-8"></head><body><?php// 检索 session 数据echo "浏览量：". $_SESSION['views'];?></body></html>Output "Views: 9999"
Destroy Session
Which unset() or session_destroy() function is used to destroy
<?phpsession_start();if(isset($_SESSION['views']))
{ //释放指定的 session 变量
unset($_SESSION['views']);
}//彻底销毁 sessionsession_destroy();?>Function: Store a user's information, change user session settings, and can be used on all pages.
PHP Session variable
Open the program, make some changes, then save and exit. It's just a session. The server can know who is operating through the session.
Working mechanism: Create a uid for the visitor, store variables according to this uid, the uid is stored in a cookie, or URL transmission.
Use PHP Session
Save user information before the session and start the session
Note: The session_start() function must be located before the tag:
<?php session_start(); ?><html><body></body></html>
Register the user session with the server to facilitate saving user information, and assign a uid to the user session
Storage Session variable
Store and obtain session using $ _SESSION
<?phpsession_start();// 存储 session 数据if(isset($_SESSION['views']))
{ $_SESSION['views']=$_SESSION['views']+1;
}else{ $_SESSION['views']=9999;
}?><html><head><meta charset="utf-8"></head><body><?php// 检索 session 数据echo "浏览量：". $_SESSION['views'];?></body></html>Output "Views: 9999"
Destroy Session
Which one to useunset() or session_destroy() Function destruction
<?phpsession_start();if(isset($_SESSION['views']))
{ //释放指定的 session 变量
unset($_SESSION['views']);
}//彻底销毁 sessionsession_destroy();?>Related recommendations:
PHP Session principle analysis and use
Analysis of SESSION principle in PHP and large websites Application Notes
Session Principle Brief Description_PHP Tutorial
The above is the detailed content of PHP Session Development Principles and Detailed Usage. For more information, please follow other related articles on the PHP Chinese website!
SpringBoot Session怎么设置会话超时May 15, 2023 pm 02:37 PM问题发现springboot项目生产session-out超时问题，描述下问题：在测试环境通过改动application.yaml配置session-out,经过设置不同时间验证session-out配置生效，于是就直接设置了过期时间为8小时发布到了生产环境。然而中午接到客户反应项目过期时间设置较短，半小时不操作就会话过期需要反复登陆。解决处理开发环境：springboot项目内置Tomcat，所以项目中application.yaml配置session-out是生效的。生产环境：生产环境发布是
php session刷新后没有了怎么办Jan 18, 2023 pm 01:39 PMphp session刷新后没有了的解决办法：1、通过“session_start();”开启session；2、把所有的公共配置写在一个php文件内；3、变量名不能和数组下标相同；4、在phpinfo里面查看session数据的存储路径，并查看该文件目录下的sessio是否保存成功即可。
session php默认失效时间是多少Nov 01, 2022 am 09:14 AMsession php默认失效时间是1440秒，也就是24分钟，表示客户端超过24分钟没有刷新，当前session就会失效；如果用户关闭了浏览器，会话就会结束，Session就不存在了。
Springboot2 session设置超时时间无效怎么解决May 22, 2023 pm 01:49 PM问题：今天项目中遇到了一个设置时间超时的问题，按SpringBoot2的application.properties更改一直不生效。解决方案：server.*属性用于控制SpringBoot使用的嵌入式容器。SpringBoot将使用ServletWebServerFactory实例之一创建servlet容器的实例。这些类使用server.*属性来配置受控的servlet容器（tomcat，jetty等）。当应用程序作为war文件部署到Tomcat实例时，server.*属性不适用。它们不适用，
PHP如何在多个文件中正确地读取和写入Session数据Mar 23, 2023 am 11:12 AM当您在使用PHP会话（Session）时，有时会发现Session在一个文件中可以正常读取，但在另一个文件中却无法读取。这可能会让您感到困惑，因为会话数据应该可以在整个应用程序中共享。本文将解释如何在多个文件中正确地读取和写入PHP会话数据。
Redis的共享session应用如何实现短信登录Jun 03, 2023 pm 03:11 PM1.基于session实现短信登录1.1短信登录流程图1.2实现发送短信验证码前端请求说明：说明请求方式POST请求路径/user/code请求参数phone（电话号码）返回值无后端接口实现：@Slf4j@ServicepublicclassUserServiceImplextendsServiceImplimplementsIUserService{@OverridepublicResultsendCode(Stringphone,HttpSessionsession){//1.校验手机号if
JavaScript和PHP的cookie之间有哪些区别？Sep 02, 2023 pm 12:29 PMJavaScriptCookie使用JavaScriptcookie是记住和跟踪偏好、购买、佣金和其他信息的最有效方法。更好的访问者体验或网站统计所需的信息。PHPCookieCookie是存储在客户端计算机上的文本文件并保留它们用于跟踪目的。PHP透明地支持HTTPcookie。JavaScriptcookie如何工作？您的服务器将一些数据发送到访问者的浏览器cookie的形式。浏览器可以接受cookie。如果存在，它将作为纯文本记录存储在访问者的硬盘上。现在，当访问者到达站点上的另一个页面时
PHP如何处理微信小程序中的session问题Jun 02, 2023 pm 03:40 PM近年来，微信小程序风靡全球，已经成为了许多企业和个人开发者的首选平台。在小程序的开发中，我们经常会遇到session问题，也就是如何在小程序中保存用户登录状态。这个问题对于网站开发者来说并不陌生，但在小程序中却有些不同。本文将介绍如何使用PHP解决微信小程序中的session问题。一、小程序登录过程概述小程序的登录流程与网站的登录流程类似，分为以下几个步骤：
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
AI Hentai Generator
Generate AI Hentai for free.
Hot Article
Hot Tools
EditPlus Chinese cracked version
Small size, syntax highlighting, does not support code prompt function
SublimeText3 English version
Recommended: Win version, supports code prompts!
MinGW - Minimalist GNU for Windows
This project is in the process of being migrated to osdn.net/projects/mingw, you can continue to follow us there. MinGW: A native Windows port of the GNU Compiler Collection (GCC), freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All MinGW software can run on 64-bit Windows platforms.
SublimeText3 Linux new version
SublimeText3 Linux latest version
SAP NetWeaver Server Adapter for Eclipse
Integrate Eclipse with SAP NetWeaver application server.
