// Set the interval to 30 seconds (30000 ms).
SetMessageInterval(30000);

// Add a random message to the queue.
AddRandomMessage("Make sure you visit our forums for more information!", 0xFFFFFFFF);

Replace->$name(playerid, string[], size) {
    GetPlayerName(playerid, string, MAX_PLAYER_NAME);
}

Replace->$money(playerid, string[], size) {
    format(string, size, "%d", GetPlayerMoney(playerid));
}

AddRandomMessage("Hey there [$name], you currently have [$money]!", 0xFFFFFFFF);

Hey there Emmet_Jones, you currently have $50000!

SetRandomMessagesForPlayer(playerid, false);

public OnRandomInterval()
{
    return 1;
}

public OnPlayerConnect(playerid)
{
    // This will disable automatic messages from being sent automatically.
    SetRandomMessagesForPlayer(playerid, false);
}

public OnRandomInterval()
{
    // This allows the scripter to show random messages elsewhere.
    // For example, showing the random message in a textdraw!
 
    new
        messageid = GetRandomMessageID(),
        string[128];
  
    for (new i = 0; i < MAX_PLAYERS; i ++)
    {
        if (IsPlayerConnected(i))
        {
            GetRandomMessageOutput(i, messageid, string, sizeof(string));

            // Do something with "string"!
        }
    }
}

// Add a random message to the queue.
native AddRandomMessage(const message[], color = -1);

// Sets the random message time interval (time = ms).
native SetMessageInterval(time);

// Conditional check to check for valid messages.
native IsValidRandomMessage(messageid);

// Enable or disable random messages for a player.
native SetRandomMessagesForPlayer(playerid, bool:status);

// Returns true if random messages are disabled for the player.
native bool:GetRandomMessagesForPlayer(playerid);

// Returns a random message in the queue (INVALID_MESSAGE_ID if none exist).
native GetRandomMessageID();

// Sends a random message to a player.
native SendRandomMessage(playerid, messageid);

// Generates the output for a random message (useful for textdraw displays, etc).
native GetRandomMessageOutput(playerid, messageid, dest[], size = sizeof(dest));

// Returns the total amount of random messages.
native GetTotalRandomMessages();

// Set the interval to 30 seconds (30000 ms).
SetMessageInterval(30000);

// Add a random message to the queue.
AddRandomMessage("Make sure you visit our forums for more information!", 0xFFFFFFFF);

SetMessageInterval(messageid,time)