Differences between php session and cookie

Differences between cookies and sessions in php:

1. cookie data is stored in the client's browser, and session data is stored on the server.

2. Cookies are not very secure. Others can analyze the Cookies stored locally and perform cookie spoofing. session should be used for security reasons.

3. The session will be stored on the server for a certain period of time. When the number of accesses increases, the performance of your server will be relatively occupied. To reduce the server performance, cookies should be used.

4. the maximum size of a single cookie on the client is 3 kb. That is to say, a website cannot store 3 kb of cookies on the client.

Therefore, we recommend that you store important information such as login information as SESSION, and store other information in cookies if necessary.

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