PHP telnet client

telnet.php

<?php

if ( array_key_exists(1, $argv) ){
    $cfgServer = $argv[1];
} else {
    echo "ex: 'php test.php 10.0.0.0 [port]' \n";
    exit;
} 

$cfgPort    = isset($argv[2]) ? $argv[2] : 23;                //port, 22 if SSH 
$cfgTimeOut = 10;

$usenet = fsockopen($cfgServer, $cfgPort, $errno, $errstr, $cfgTimeOut); 

if (!$usenet) { 
    echo "Connexion failed\n";
    exit();
} else {
    echo "====> Connected\n";

    stream_set_timeout($usenet, 2); // set the timeout for the fgets 

    while ($command = fread(STDIN, 1024)) {
        fputs($usenet, $command);
        $j = 0;
        while (!feof($usenet)){
            echo fgets($usenet, 128);

            $info = stream_get_meta_data($usenet);
            if ($info['timed_out']) {
                $j++;
                echo "====> Wait timeout $j!\n";
            }
            if ($j > 2){
                break;
            }
        }
    }
}
echo "====> End.\r\n";