[PrO.GameR]

Detoria's code is well ... flawed to the point of not working, I'll try to optimize and fix it
but credits to him for trying

PHP код:

CMD:lifep(playerid, params[])
{
    new Float:X, Float:Y, Float:Z;
    GetPlayerPos(playerid, X, Y, Z);
    for(new i; i < MAX_PLAYERS; i++)
    {
            if(IsPlayerInRangeOfPoint(i, 5.0, X, Y, Z))
                 SetPlayerHealth(i, 100.0);
    }
    return 1;
} 


A couple notes ^
A) when a player does the cmd, he IS connected, there is no need to check
B) natives have a built-in connected check, so just use SetPlayerHealth, if it fails he is not connected