[JaTochNietDan]

Using this system you would need to make a variable in OnPlayerCommandText and store the first part of the string there.

Here you go, I also suggest you change the fight ID variable to an integer, as a large array is quite pointless and a waste of memory. I've made a few other changes to your code also in order to improve it. There's also no need for an IsPlayerConnected check in a command is there? Since a player can't send a command to a server without being connected to it.

pawn Код:

public OnPlayerCommandText(playerid,cmdtext[])
{
    new idx,cmd[128];
    cmd = strtok(cmdtext,idx);

    if(strcmp(cmd, "/fight", true) == 0)
    {
        new fight_id;
        fight_id = strval(strtok(cmdtext, idx));
       
        if(fight_id < 1 || fight_id > 5)
        {
            SendClientMessage(playerid, COLOR_RED, "ПРИМЕНЕНИЕ: /fight [1-5]");
            SendClientMessage(playerid, COLOR_YELLOW2, "Стили: 1-konfu, 2-boxer, 3-gangster, 4-elbow, 5-normal");
            return 1;
        }
        else if(fight_id == 1)
        {
            SetPlayerFightingStyle(playerid, FIGHT_KARATE);
            SendClientMessage(playerid, COLOR_GREEN, "Теперь у вас стиль рукапашного боя 'Конфу'");
        }
        else if(fight_id == 2)
        {
            SetPlayerFightingStyle(playerid, FIGHT_BOXING);
            SendClientMessage(playerid, COLOR_GREEN, "Теперь у вас стиль рукапашного боя 'Бокс'");
        }
        else if(fight_id == 3)
        {
            SetPlayerFightingStyle(playerid, FIGHT_GANGSTER);
            SendClientMessage(playerid, COLOR_GREEN, "Теперь у вас стиль рукапашного боя 'Гангстер'");
        }
        else if(fight_id == 4)
        {
            SetPlayerFightingStyle(playerid, FIGHT_STYLE_ELBOW);
            SendClientMessage(playerid, COLOR_GREEN, "Теперь у вас стиль рукапашного боя 'Бить локтём'");
        }
        else if(fight_id == 5)
        {
            SetPlayerFightingStyle(playerid, FIGHT_NORMAL);
            SendClientMessage(playerid, COLOR_GREEN, "Теперь у вас стиль рукапашного боя 'Стандартный'");
        }
        PlayerPlaySound(playerid, 1139, 0.0, 0.0, 0.0);
        return 1;
    }
    return 0;
}

You should compare both versions and see what was done differently, and look more into the functions being used to understand it better.