Loops

From SA-MP Wiki

Needs description here.

for(new i=0; i<MAX_PLAYERS; i++)
{
    // Do stuff here
}

Explained

new i=0;
Creates the variable 'i' and sets it to 0

i<MAX_PLAYERS;
If the loop is less than MAX_PLAYERS (500) it will continue

i++
Adds one to i each time

OnPlayerSpawn(playerid)
{
    for(new i=0; i<MAX_PLAYERS; i++)
    {
        if(!IsPlayerConnected(i)) continue;
        SendClientMessage(i, 0x33AA33AA, "Someone spawned!");
    }
    return 1;
}

That could be an alternative to SendClientMessageToAll.

Also, the variable does not have to be called 'i', it can be assigned any name.

for(new blah=0; blah<MAX_VEHICLES; blah++)

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