[PHP] Re: Can PHP works with telnet?

[HoWang Wang]

Hi,
It's me again. I have take a look on 
http://www.geckotribe.com/php-telnet/ , but I think the codes are not 
friendly to me. So I create my own telnet class for my program. I'm 
going to post it here for reference. But it is made just for my program 
so you may have difficulty when you try to use it on a normal telnet 
connection.

<?php

class telnet
{
        // Host
        var $host = '127.0.0.1';
        // Port
        var $port = 23;
        // Use usleep?
        var $usleep = 1;

        // --- End of config ---
        
        // File Pointer
        var $fp;
        // This is the Telnet headers
        var $header1;
        var $header2;
        
        function telnet($host,$port)
        {
                if (!empty($host)) $this->host = $host;
                if (!empty($port)) $this->port = $port;
	 
$this->header1=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->header2=chr(0xFF).chr(0xFC).chr(0x01).chr(0xFF).chr(0xFC).chr(0x22).chr(0xFF).chr(0xFE).
                     chr(0x05).chr(0xFF).chr(0xFC).chr(0x21);
                $this->connect();
        }
        
        function sleep()
        {
                if ($this->usleep)
                {
                        usleep(125000);
                }
                else
                {
                        sleep(1);
                }
        }
        
        function connect()
        {
                $this->fp = fsockopen($this->host,$this->port);
                fputs($this->fp,$this->header1);
                $this->sleep();
                fputs($this->fp,$this->header2);
                $this->sleep();
        }
        
        function docmd($cmd)
        {
                fputs($this->fp,$cmd . "\r");
                $this->sleep();
        }
        
        function readresp()
        {
                do
                {
                        // read line by line, or at least small chunks
                        $output.=fread($fp, 80);
                        $stat=socket_get_status($fp);
                }
                while($stat["unread_bytes"]);
                $output = str_replace("\n", "<br>", $output);
                echo $output;
        }
        
        function disconnect()
        {
                fclose($this->fp);
        }
}
?>


Thanks to all the repliers.



HoWang Wang wrote:
Hi all,

Recently I got a job to write a PHP webpage to display some infomation
which have to obtain from telnet. Telnet is the only way to query the
software. I have made a quick search on php.net but I can't found amy
extension support telnet. Is there any way to do so? Or it is impossible
with PHP but can be done with external binaries?
Please help, thanks.

HoWang Wong

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