bot.im php script

<?php

//simple php script for bot.im
//created by otzy_007(Andrei G.) http://oprod.net


//the message from the user
$msg = strtolower($_REQUEST["msg"]);

$part = explode("(", $msg);

//if there's an exec command execute it
//example: exec(whoami), exec(ps), exec(uptime)
if($part[0]=='exec'){
$part[1]=rtrim($part[1], ")");
echo exec($part[1]);
}
//else execute the other commands
else
{
switch($msg)
{
  case "date":
        echo date("D M j G:i:s T Y");
  break;
  case "hello":
        echo "Hi!";
  break;
  case "user":
        echo $_REQUEST['user'];
  break;
  case "help":
        help();
  break;
  default:
        echo "For a list of avaible commands enter help";
  break;
}
}
function help(){
echo "Avaible commands: help, date, hello, exec(\"command\") without quotes";
}

?>