Shulou(Shulou.com)05/31 Report--

This article introduces the knowledge of "how to achieve smooth shutdown and restart of PHP". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

Principle

To achieve a smooth shutdown / restart, here are two knowledge points:

Blocking signal

When our program is working on a task, you certainly don't want it to be terminated halfway, for example, if you are performing a database transaction, you certainly don't want the transaction to be terminated before it has been committed.

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