[erminpr0]

The easiest way, you'll need Command Processor by ******, it's the fastest CP (ZCMD by Zeex is fast too)

pawn Код:

YCMD:report(playerid, params[], help)
{
     #pragma unused help
     new player, playername[MAX_PLAYER_NAME], myname[MAX_PLAYER_NAME], reason[128], string[128];
     if(sscanf(params, "us[128]", player, reason)) return SendClientMessage(playerid, 0xFFFFFFAA, "USAGE: /report [playerid] [reason]");
     else if(player == INVALID_PLAYER_ID) return SendClientMessage(playerid, 0xFFFFFFAA, "ERROR: That player is not connected!");
     GetPlayerName(playerid, myname, sizeof(myname));
     GetPlayerName(player, playername, sizeof(playername));
     format(string, sizeof(string), "SUCCESS: You have reported %s for %s", playername, reason);
     SendClientMessage(playerid, 0xFFFFFFAA, string);
     format(string, sizeof(string), "REPORT: %s has been reported for %s by %s!", playername, myname, reason);
     for(new i = 0; i < MAX_PLAYERS; i++)
     {
           if(IsPlayerAdmin(i)) { SendClientMessage(i, 0xFFFFFFAA, string); }
           return true;
     }
     return 1;
}