[Niixie]

SendClientMessageToAll works like this.

pawn Код:

new string[64];

format(string, sizeof(string), "The text you want to say here");
SendClientMessageToAll(COLOR_WHITE, string);

You can also add names etc.
ex.


after the command in
OnPlayerCommandText
put this

pawn Код:

new string[64], Playername[24];
   GetPlayerName(playerid, Playername, sizeof(Playername);

   format(string, sizeof(string), "%s has entered a command" Playername);
   SendClientMessageToAll(COLOR_BLUE, string);

This will send a message to all if the player typed a cmd.
if you replace Playername with playerid, the %s should be %d(or %i) and will tell the users ID