[thefirestate]

The most simple way:

PHP код:

CMD:makeadmin(playerid, params[])
{
    if(IsPlayerAdmin(playerid) || pInfo[playerid][Adminlevel] == 5) // I am asuming you have 5 different admin levels, not sure how exactly you have.
    {
         new toid, level;
         if(!sscanf(params, "ui", toid, level))
         {
             pInfo[toid][Adminlevel] = level;
             new string[50];
             format(string, sizeof(string), "You have been set as level %d administrator.", level);
             SendClientMessage(toid, -1, string);
             new name[25];
             GetPlayerName(toid, name, sizeof(name));
             format(string, sizeof(string), "You have set %s's admin level to %d.", name, level);
        }
        else return SendClientMessage(playerid, -1, "USAGE: /makeadmin [playerid/partofname] [level]");
    }
    else return SendClientMessage(playerid, -1, "Access denied.");
} 


If you have any questions, ask.