PHP Session Development Principles and Detailed Usage

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.

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Use PHP Session

Start the session before storing user information in the session
Note: The session_start() function must be located before the tag:

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

Output "Views: 9999"

Destroy Session

Which unset() or session_destroy() function is used to 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:

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

Output "Views: 9999"

Destroy Session

Which one to useunset() or session_destroy() Function destruction

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