Connecting to a TCP/IP server via php script [closed]

Easily with php sockets:

<?php$fp = fsockopen("www.example.com", 80, $errno, $errstr, 30);if (!$fp) {    echo "$errstr ($errno)<br />\n";} else {    fwrite($fp, "Your message");    while (!feof($fp)) {        echo fgets($fp, 128);    }    fclose($fp);}?>

To read more, go to http://php.net/manual/en/function.fsockopen.php

<?phperror_reporting(E_ALL);/* Allow the script to hang around waiting for connections. */set_time_limit(0);/* Turn on implicit output flushing so we see what we're getting * as it comes in. */ob_implicit_flush();$address = '192.168.1.53';$port = 10000;if (($sock = socket_create(AF_INET, SOCK_STREAM, SOL_TCP)) === false) {    echo "socket_create() failed: reason: " . socket_strerror(socket_last_error()) . "\n";}if (socket_bind($sock, $address, $port) === false) {    echo "socket_bind() failed: reason: " . socket_strerror(socket_last_error($sock)) . "\n";}if (socket_listen($sock, 5) === false) {    echo "socket_listen() failed: reason: " . socket_strerror(socket_last_error($sock)) . "\n";}do {    if (($msgsock = socket_accept($sock)) === false) {        echo "socket_accept() failed: reason: " . socket_strerror(socket_last_error($sock)) . "\n";        break;    }    /* Send instructions. */    $msg = "\nWelcome to the PHP Test Server. \n" .        "To quit, type 'quit'. To shut down the server type 'shutdown'.\n";    socket_write($msgsock, $msg, strlen($msg));    do {        if (false === ($buf = socket_read($msgsock, 2048, PHP_NORMAL_READ))) {            echo "socket_read() failed: reason: " . socket_strerror(socket_last_error($msgsock)) . "\n";            break 2;        }        if (!$buf = trim($buf)) {            continue;        }        if ($buf == 'quit') {            break;        }        if ($buf == 'shutdown') {            socket_close($msgsock);            break 2;        }        $talkback = "PHP: You said '$buf'.\n";        socket_write($msgsock, $talkback, strlen($talkback));        echo "$buf\n";    } while (true);    socket_close($msgsock);} while (true);socket_close($sock);?>

this is just an example from net for further look documentation

connecting to tcp server

 $host="192.168.1.99";     $port = 1234; // open a client connection     $fp = fsockopen ($host, $port, $errno, $errstr);     if (!$fp) {     $result = "Error: could not open socket connection";     }     else { // get the welcome message fgets ($fp, 1024); // write the user string to the socket     fputs($fp, $message); // get the result $result .= fgets ($fp, 1024); // close the connection    fputs ($fp, "END");    fclose ($fp); // trim the result and remove the starting ?    $result = trim($result);    $result = substr($result, 2); // now print it to the browser     } ?>     Server said: <? echo $result; ?>