Quick'n dirty PHP client for RocketMod RCON

rcon.php

<?php

class RocketRCON {
	private $socket;
	private $connected = false;
	public $errstr;
	
    function connect($ip,$port,$password,$timeout = 5) {
		try{
			$this->socket = fsockopen($ip, intval($port), $errno, $errstr, $timeout); 
			if(!$this->socket) {
				$this->errstr = $errstr;
				return false;
			}
			else{
				$this->connected = true;
				$this->login($password);
				return true;
			}
		}catch(Exception $e){
			$this->errstr = $e->getMessage();
			return false;
		}
    }
	
	private function login($password){
		if(!$this->connected) return;
		fputs($this->socket, "login " . $password."\r\n"); 
	}
	
	function send($command){
		if(!$this->connected || !$command) return;
		fputs($this->socket, $command."\r\n"); 
	}
	
	public function receive(){
		$buffer = fread($this->socket,1024);
		return $buffer;
	}
	
	function __destruct(){
		$this->disconnect();
	}
	
	function disconnect(){
		if(!$this->connected) return;
		fputs($this->socket, "quit\r\n"); 
		$this->receive();
		fclose($this->socket);
		$this->connected = false;
	}
}
$r = new RocketRCON();
$r->connect($argv[1],$argv[2],$argv[3]) or die($r->errstr);

while(true){
	usleep(1000);
	echo "< ".trim($r->receive())."\r\n";
	echo "> ";
	$cmd = trim(fgets(STDIN));
	if($cmd == "exit") break;
	$r->send($cmd);
}

$r->disconnect();