[CyNiC]

I think that's what you want:
COMMAND

Код:

if(!strcmp(cmd, "/setskin", true))
	{
		StrVar = strtok(cmdtext, idx);
		if (!strlen(StrVar)){
    return 1;
		}
		if ((strval(StrVar) < 0) || (strval(StrVar) > 299) || IsInvalidSkin(strval(StrVar))) 
return SendClientMessage(playerid, COLOR_RED, "Invalid Skin");
		SetPlayerSkin(playerid, strval(StrVar));
		return 1;
	}

Stock

Код:

stock IsInvalidSkin(skinid){
new InSkin[] = {0, 3, 4, 5, 6, 8, 42, 65, 86,74, 119, 149, 208, 273, 289};
for (new i=0; i<sizeof(InSkin); i++) if(skinid == InSkin[i]) return 1;
return 0;
}