Ashus (.ashus.net)

I wrote this script to run on crontab every 2 minutes
However, The problem I am having is it will send the same message twice sometimes....How can I get it to not do that?

<?php
// SNXRaven's RCon Connection Script.
//Chooses a random number
$num = Rand (1,7);
//Based on the random number, gives a quote
switch ($num)
{
case 1:
$command = "say Welcome to ^1[uBp],^7 You can join us at: UnitedBasePlayers.org Have a GREAT game!";
break;
case 2:
$command = "say We allow all parts of the game, all perks and guns.";
break;
case 3:
$command = "say There is no bad language allowed in any ^1[uBp]^7 Server";
break;
case 4:
$command = "say Hacking is not allowed in any ^1[uBp]^7 Server, if you are caught..you will be banned!";
break;
case 5:
$command = "say Feel free to join us in vent: IP vent.unitedbaseplayers.org:4224 Pass: Sabbath";
break;
case 6:
$command = "say United Base Players is a family based gaming community, please be respect all players.";
case 7:
$command = "say If you would like to join our Gaming Community do so at: UnitedBasePlayers.org";
}

// Server IP, Port & to connect to. 10.30.09
$server_ip = '127.0.0.1';
$server_port = '28960';
$rconpass = SomePass;

$ip = $_SERVER['REMOTE_ADDR'];
$hostaddress = gethostbyaddr($ip);
$browser = $_SERVER['HTTP_USER_AGENT'];

$server_ip = "udp://" . $server_ip;

$connect = fsockopen($server_ip, $server_port, $errno, $errstr, 30);

socket_set_timeout ($connect, 1, 000000);

$server_extra_footer = true; // true | false; if problems with receiving playerlist occur, enable
$send = "\xff\xff\xff\xff" . 'rcon "' . $rconpass . '" '.$command.(($server_extra_footer)?"\n":'');

fwrite($connect, $send);
fputs($connect, $send);

$output = fread ($connect, 1);
if (! empty ($output)) {
do {
$status_pre = socket_get_status ($connect);
$output = $output . fread ($connect, 1);
$status_post = socket_get_status ($connect);
}
while ($status_pre[unread_bytes] != $status_post[unread_bytes]);
};

fclose($connect);


?>