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

Question

I need to implement a php script on my website that would do the following:

1. Connect to a remote server
2. Send packet to the server
3. Receive packet from the server

Everything is already configurated on the server side to respond to packet requests, I only need to figure out how to use php to connect to TCP/IP server.

Any ideas in which direction to look?

Answer 1

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