Explain the content related to PHP generating unique RequestID class

This article introduces PHP to generate a uniqueRequestIDclass, using thesession_create_id()anduniqid()methods to ensure uniqueness and provide Complete code and demonstration for everyone to learn and use.

Current system designs generally use distributed systems. A request may call several microservices for processing, and finally return the result. When there is a problem with a request, it is difficult for us to track which microservice has the problem.

When each request accesses the server, we can add aunique identifier(RequestID)to this access, at the beginning of the request, during the request process, and at the end of the request , write the key data of this request process into the log (such as the parameters during the access, the methods passed, the microservices, the data returned at the end, etc.), which can be used for reference when there is a problem with the access to facilitate tracking of the problem.

For example, a request needs to go through several microservices before returning the output

Request->A->B->C-A->Output

If there is no output during the access process, or there is an error in the output, we can find the logs corresponding to A, B, and C based on the RequestID to check which service has the problem.

The code is as follows:

RequestID.class.php

demo:

Output:

16532925-4502-CDAD-23A2-463FC7B5803A500B77AD-CD24-0DDA-9E6E-2FDF2DD7CA94813143D0-958F-9F56-E04F-679598594452E5EE1B0B-E0D6-3E60-D831-462C5A262FCE79E714B5-A37F-4B5E-4EDE-83E18391EBF9 E1C440AB-FC2C-AC74-E79A-016FD59D9651 AE483861-1040-BE8D-E523-D7638D0F0D35BBD7A03A-36C9-24B7-C453-FB1DDD6E201EBF62C3E6-9C5F-22CB-668D-381863B35268 E97E1F44-F048-962A-5BF7-1113727551B1

Notesession_create_idmethod requiresphp7.1Only the above versions can be used.

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