[XK]

first of all you have to define pname:

pawn Код:

new pname[MAX_PLAYER_NAME];

now if you want to check if the name the player wrote is not used then use:

pawn Код:

tmp = strtok(cmdtext, idx);
if(!strlen(tmp))
{
        SendClientMessage(playerid, COLOR_GREY, "USAGE: /changename [name]");
    return 1;
}
format(file,sizeof(file),"%s.ini",tmp);
if(!dini_Exists(file))
{
        SetPlayerScore(playerid, dini_Int(file, "Score")); // This describes where to load the score
        SetPlayerCash(playerid, dini_Int(file, "Money"));
        return 1;
}
else if(dini_Exists(file))
{
        SendClientMessage(playerid, -1, "This name is already registered,please choose another name");
        return 1;
}