OOP and events?

[Anon]

Here is what I want to do.

I have coded a series of objects in PHP and need a way for them to communicate with one another in a completely uncoupled manner.

EG.

We have a sender and a reciever object.

The sender object is basically asks the reciever a question BUT since it doesn't know if the receiver exists or what it exists as. So it basically triggers an event through a handling object ie (handler.triggerEvent("reciever", "exist")😉 This handler would then see if an object called reciever had registered to listen for an event (ie. handler.listenEvent("exist", "someprocedurenametorun") and the handler would then call the recievers corresponding procedure when the event was triggered if it was allready listening?

Does this make sense?

[[deleted]]

It makes sense so much as that I think I know what you mean.

But from there the whole purpose of this excerise is beyond me.

What do you need this kind of communication for?

[Anon]

Actually after searching the web more it appears that XML-RPC is what I am looking for...maybe?

[Anon]

the overhead of xml-rpc is going to be huge. what you really want is some sort of broadcast/listener notification setup a la java or some c++ frameworks (powerplant leaps to mind). rpc is for remote procedures across networks... xml-rpc is similar to soap if you're familiar with that or rpc in java. i don't know what i would suggest as lighter weight but maybe:
a) some sort of registration and communication process involving files on disk or on a database. lots of work but faster at run time
b) if you haven't gotten too far in coding, switching languages to something with this built in (java is the obvious choice)

[Anon]

Actually I was going to need to implement RPC eventually anyway, I am going to mess around and see what kind of hit I actually take in performance.