Ban

From SA-MP Wiki

This function can be used to ban a player who currently is in your server. The ban will be IP-based, and saved in the samp.ban file in your server's root directory. BanEx allows you to ban with a reason, while you can ban and unban IP's using the RCON banip and unbanip commands.

Parameters:

(playerid)

playerid

The ID of the player you want to ban.

Returns

This function doesn't return a specific value

public OnPlayerCommandText(playerid, cmdtext[])
{
    if(strcmp(cmdtext, "/banme", true) == 0)
    {
        // Ban the player who types this command.
        Ban(playerid);
        return 1;
    }
}