如何从另一台服务器调用PHP函数？

Question

Is there a way that I can call a PHP function from another server?

I have access to both these 2 servers. I want to call a PHP function from server 1 and use it in server 2.

What do I need to change on both servers to make it possible? Thanks!

Answer 1

You could use an API to do this. On Server 1 using Curl or GuzzleHttp you want to make an API call to Server 2

When Server 2 receives the request from Server 1 you can have the function run.

One thing to consider here is security, you will need a way of verifying that only Server 1 is making requests and not somebody who's figured out your API. Usually an API Key is passed when making the request and it's checked on the API.

Answer 2

Essentially what you're asking is how to do a remote procedure call (RPC) between two PHP applications. To communicate between two applications (PHP applications in your case) that are hosted on different servers you need to choose some kind of communication protocol .

The protocol you choose would depend on many things, including what your applications do, how often they would communicate, what kind of data you want to send between them, etc.

I'm no expert myself, but from what I know gRPC and REST are two of the more popular API communication protocols. See these articles for comparisons between the two. If your servers are going to be communicating back and forth very frequently you might want to consider WebSockets or MQTT .

For most of these protocols you're going to have to set up a service/server on the one server (the server on which your function is that you want to be called) and a client on the other (the server from which you want to call the function).

To set up gRPC, have a look at this PHP tutorial .

To set up REST, you would need to expose a HTTP endpoint on your server-host and consume the endpoint from your client-host. Exposing the endpoint is most easily done with an API framework of which there are many (just Google "PHP REST framework"). Consuming the endpoint can be done with a HTTP client, such as Guzzle , like some of the other answers mention.

Answer 3

抱歉，如果不是同一服务器会话不会在其他页面上生效，则无法像sesssion一样进行。