Session management is an important part of web development, including Session and Cookie technologies.
1. How Cookie works
setcookie()
2. Cookie application development
Can only read the domain
A single domain cannot exceed 20 cookies. The maximum length of each cookie file is 4k bytes. The browser can store up to 300 cookies
6 attributes: name, value, expires, path, domain, secure
Save form content
Control access authorization
3. Write a general Cookie class
4. Solution
Cookie access optimization
You can save a series of cookie data into an array
Detect whether the client supports
Try to set a cookie on the first run and then call
Second-level domain name implementation
setcookie( name , value ,expires ,path ,'domain.com‘,secure )
Cookie security
Cookie restrictions
5. Session concept
6. Session configuration
7. Session application
Create
Modify
View current sessionid
Change expiration time session.cookie_lifetime
Destroy the current session
8. Session encoding and decoding
session_encode()
session_decode()
9. Save array in session
10. Save objects in session
11. Session access optimization
12. Sharing sessions on multiple servers (important)
13. Session security
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