PHP learning the difference between session and cookie

Cookies are usually stored in the cookie folder of the browser. Cookie files in the browser are usually stored in binary or SQLite format. If you open the cookie file directly, you may see some garbled or unreadable content, so it is best to use Use the cookie management interface provided by your browser to view and manage cookies.

Cookies on your computer are stored in specific locations on your browser, depending on the browser and operating system used: 1. Google Chrome, stored in C:\Users\YourUsername\AppData\Local\Google\Chrome\User Data\Default \Cookies etc.

Session failure is usually caused by the session lifetime expiration or server shutdown. The solutions: 1. Extend the lifetime of the session; 2. Use persistent storage; 3. Use cookies; 4. Update the session asynchronously; 5. Use session management middleware.

Solution to the cross-domain problem of PHPSession In the development of front-end and back-end separation, cross-domain requests have become the norm. When dealing with cross-domain issues, we usually involve the use and management of sessions. However, due to browser origin policy restrictions, sessions cannot be shared by default across domains. In order to solve this problem, we need to use some techniques and methods to achieve cross-domain sharing of sessions. 1. The most common use of cookies to share sessions across domains

Cookies on the mobile phone are stored in the browser application of the mobile device: 1. On iOS devices, Cookies are stored in Settings -> Safari -> Advanced -> Website Data of the Safari browser; 2. On Android devices, Cookies Stored in Settings -> Site settings -> Cookies of Chrome browser, etc.

With the popularity of the Internet, we use browsers to surf the Internet have become a way of life. In the daily use of browsers, we often encounter situations where we need to enter account passwords, such as online shopping, social networking, emails, etc. This information needs to be recorded by the browser so that it does not need to be entered again the next time you visit. This is when cookies come in handy. What are cookies? Cookie refers to a small data file sent by the server to the user's browser and stored locally. It contains user behavior of some websites.

Solutions for document.cookie not being obtained: 1. Browser privacy settings; 2. Same-origin policy; 3. HTTPOnly Cookie; 4. JavaScript code error; 5. Cookie does not exist or expires; 6. Cross-domain issues; 7. Viewer mode; 8. Server problems; 9. JavaScript execution timing; 10. Check console log, etc.

Common problems and solutions for cookie settings, specific code examples are required. With the development of the Internet, cookies, as one of the most common conventional technologies, have been widely used in websites and applications. Cookie, simply put, is a data file stored on the user's computer that can be used to store the user's information on the website, including login name, shopping cart contents, website preferences, etc. Cookies are an essential tool for developers, but at the same time, cookie settings are often encountered