[iBots]

I have searched for the difference between defining a function without using stock and with using stock, and i cant manage to get an answer, 1.What is the difference between defining a function like this:

pawn Код:

stock Example(playerid)
{
//code
}

and this:

pawn Код:

Example(playerid)
{
//code
}

2.what is the difference between :

pawn Код:

forward Example(playerid);
public Example(playerid)
{
//code
}

and using stock:

pawn Код:

stock Example(playerid)
{
//code
}