(在线等)求助一个phptelnet的问题

前几天看了网上一个牛人写的php telnet的源码

show_connect_error=0;$result = $telnet->Connect($host,$user,$pass);switch ($result)   {  case 0:  $telnet->DoCommand($cmd, $result);  echo $result;  $telnet->Disconnect();  break;  case 1:  echo '[PHP Telnet] Connect failed: Unable to open network connection';  break;  case 2:  echo '[PHP Telnet] Connect failed: Unknown host';  break;  case 3:  echo '[PHP Telnet] Connect failed: Login failed';  break;  case 4:  echo '[PHP Telnet] Connect failed: Your PHP version does not support PHP Telnet';  break;   }  }else  {?> $needvers[$i]) break;   if (($vers[$i]+0)<$needvers[$i]) {    $this->ConnectError(4);    return 4;   }  }     $this->Disconnect();     if (strlen($server)) {   if (preg_match('/[^0-9.]/',$server)) {    $ip=gethostbyname($server);    if ($ip==$server) {     $ip='';     $rv=2;    }   } else $ip=$server;  } else $ip='127.0.0.1';     if (strlen($ip)) {   if ($this->fp=fsockopen($ip,23)) {    fputs($this->fp,$this->conn1);    $this->Sleep();         fputs($this->fp,$this->conn2);    $this->Sleep();    $this->GetResponse($r);    $r=explode("\n",$r);    $this->loginprompt=$r[count($r)-1];    fputs($this->fp,"$user\r");    $this->Sleep();    fputs($this->fp,"$pass\r");    if ($this->use_usleep) usleep($this->loginsleeptime);    else sleep(1);    $this->GetResponse($r);    $r=explode("\n",$r);    if (($r[count($r)-1]=='')||($this->loginprompt==$r[count($r)-1])) {     $rv=3;     $this->Disconnect();    }   } else $rv=1;  }     if ($rv) $this->ConnectError($rv);  return $rv;} function Disconnect($exit=1) {  if ($this->fp) {   if ($exit) $this->DoCommand('exit',$junk);   fclose($this->fp);   $this->fp=NULL;  }}function DoCommand($c,&$r) {  if ($this->fp) {   fputs($this->fp,"$c\r");   $this->Sleep();   $this->GetResponse($r);   $r=preg_replace("/^.*?\n(.*)\n[^\n]*$/","$1",$r);  }  return $this->fp?1:0;} function GetResponse(&$r) {  $r='';  do {    $r.=fread($this->fp,1000);   $s=socket_get_status($this->fp);  } while ($s['unread_bytes']);} function Sleep() {  if ($this->use_usleep) usleep($this->sleeptime);  else sleep(1);} function PHPTelnet() {  $this->conn1=chr(0xFF).chr(0xFB).chr(0x1F).chr(0xFF).chr(0xFB).   chr(0x20).chr(0xFF).chr(0xFB).chr(0x18).chr(0xFF).chr(0xFB).   chr(0x27).chr(0xFF).chr(0xFD).chr(0x01).chr(0xFF).chr(0xFB).   chr(0x03).chr(0xFF).chr(0xFD).chr(0x03).chr(0xFF).chr(0xFC).   chr(0x23).chr(0xFF).chr(0xFC).chr(0x24).chr(0xFF).chr(0xFA).   chr(0x1F).chr(0x00).chr(0x50).chr(0x00).chr(0x18).chr(0xFF).   chr(0xF0).chr(0xFF).chr(0xFA).chr(0x20).chr(0x00).chr(0x33).   chr(0x38).chr(0x34).chr(0x30).chr(0x30).chr(0x2C).chr(0x33).   chr(0x38).chr(0x34).chr(0x30).chr(0x30).chr(0xFF).chr(0xF0).   chr(0xFF).chr(0xFA).chr(0x27).chr(0x00).chr(0xFF).chr(0xF0).   chr(0xFF).chr(0xFA).chr(0x18).chr(0x00).chr(0x58).chr(0x54).   chr(0x45).chr(0x52).chr(0x4D).chr(0xFF).chr(0xF0);  $this->conn2=chr(0xFF).chr(0xFC).chr(0x01).chr(0xFF).chr(0xFC).   chr(0x22).chr(0xFF).chr(0xFE).chr(0x05).chr(0xFF).chr(0xFC).chr(0x21);} function ConnectError($num) {  if ($this->show_connect_error) switch ($num) {  case 1: echo '
[PHP Telnet] http://www.geckotribe.com/php-telnet/errors/fsockopen.php">Connect failed: Unable to open network connection
'; break;  case 2: echo '
[PHP Telnet] http://www.geckotribe.com/php-telnet/errors/unknown-host.php">Connect failed: Unknown host
'; break;  case 3: echo '
[PHP Telnet] http://www.geckotribe.com/php-telnet/errors/login.php">Connect failed: Login failed
'; break;  case 4: echo '
[PHP Telnet] http://www.geckotribe.com/php-telnet/errors/php-version.php">Connect failed: Your server\'s PHP version is too low for PHP Telnet
'; break;  }}}?>

我使用的是ubuntu 12.04的server版系统，自带的LAMP。然后再执行该程序的时候，一直报
[PHP Telnet] Connect failed: Login failed 的错误，
但是其他同事在其他电脑上面安装ubuntu 12.04,执行这套程序的时候却是正常工作的，弄了好几天，实在不知道是什么原因，恳请大牛解答，分数不多，就这么点了，多谢了！

回复讨论(解决方案)

其实我就是想在网页中嵌入一个 ssh或者telnet的远程登录程序。有其他的方法更好，多谢了

确认一下你和你同事的php版本
我觉得跟这个有关

\r换成\n,LINUX不认\r的