Lua/plugins questions

Hi

I have couple questions for Plugins devlopper / lua pro!

1:
What is the difference between

Code:

function PLUGIN:myfunc()
        something
end

and

Code:

function myfunc()
        something
end

My understanding is, with "PLUGIN:" make the function "public" and w/o "PLUGIN:" make it "private" to my plugin. And I know the call won't be the same (self:myfunc() vs myfunc())
What are the pros/cons of each method?

2:
For this question I'll use BasePlayer as exemple

Is it better to store a BasePlayer in a var or store a userID, then search activePlayerList every time I need to use a BasePlayer?

3:
This one isn't really a question

Am I right when I say

use something:somefunc() when the function use "this."
and use something.somefunc() when the function don't use "this."
and as @Reneb already told me, use methodarray when multiple func has the same name

Thank you!

 

http://oxidemod.org/threads/plugin-vs-self-variables.3757/#post-46465

 

using
location function blabla()
is good also, i like doing that

 

And what about my question #2??

 

I have no idea, i would say store BasePlayer in the var, it's faster and you dont have to loop all the players to get the userid

 

Ok thank you @Reneb