PHP IRC bot 24/7 houden

Hoe maak je een IRC bot 24/7?

Dit heb ik al:
<?PHP
$sock = fsockopen('******', '****', $errno, $errstr);
if ($errno != 0) echo "ERROR: $errno - $errstr<br />\n";
sleep(1);
fwrite($sock, "USER Test Test Test :Test\r\n");
fwrite($sock, "NICK :Test\r\n");
fwrite($sock, "PRIVMSG nickserv :identify ******\r\n");
fwrite($sock, "OPER ***********\r\n");
sleep(1);
fwrite($sock, "JOIN :#test \r\n \r\n");
sleep(2);
fwrite($sock, "MODE #test +o Test\r\n");
?>