#include <a_samp>

new ServerObject[1000]; //Change '1000' to how many objects your server has. Use as much as you want if you are using a streamer.

public OnFilterScriptInit()
{
    ServerObject[0] = CreateObject(objectid, ... //This is your first object. All of your objects will go here.
    ServerObject[1] = CreateObject(objectid, ... //Second object, notice that the number after ServerObjects increases every line.
    ServerObject[2] = CreateObject(objectid, ... //Because we used '1000' above, the maximum this number can be is 999, 1 less than 1000.

//Continued...

    ServerObject[999] = CreateObject(objectid, ... //This is the highest number you can reach with normal CreateObject lines, but CreateDynamicObject with a streamer will allow you to have as much as you want.
    return 1;
}

public OnFilterScriptExit()
{
    for(new i = 0; i < sizeof(ServerObject); i++) DestroyObject(ServerObject[i]);
    //This will destroy all objects that were created above. This prevents objects from double-spawning when you reload the filterscript multiple times. Which can result in an eventual server crash.
    return 1;
}