PHP session tracking
Introduction
update time：2018-02-091 What is session control
Reason for occurrence: http is a stateless protocol. Each time it is a different server request, the relationship between the two request transactions cannot be maintained.
Session control: Able to track a variable in the website. By tracking the variable, multiple requests can be connected, and different content and different pages can be displayed based on authorization and user identity
Cookie: It is a text file set by the server on the client to save the client's personal information.
url rewriting
cookie technology
session technology
Reason for occurrence: http is a stateless protocol. Each time it is a different server request, the relationship between the two request transactions cannot be maintained.
Session control: Able to track a variable in the website. By tracking the variable, multiple requests can be connected, and different content and different pages can be displayed based on authorization and user identity
Cookie: It is a text file set by the server on the client to save the client's personal information.
2 Session tracking technology
Hide form fieldsurl rewriting
cookie technology
session technology
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