(PHP using ActiveX) TCP/IP Socket Connect to Remote Host:Port

Demonstrates how to create a TCP/IP socket, connect to a remote host:port, and receive a "Hello World!" message.

Download Chilkat Socket ActiveX

<?php

$socket = new COM("Chilkat.Socket");

$success = $socket->UnlockComponent('Anything for 30-day trial');
if ($success != 1) {
    print $socket->lastErrorText() . "\n";
    exit;
}

//  Connect to port 5555 of localhost.
//  The string "localhost" is for testing on a single computer.
//  It would typically be replaced with an IP hostname, such
//  as "www.chilkatsoft.com".
$ssl = 0;
$maxWaitMillisec = 20000;
$success = $socket->Connect('localhost',5555,$ssl,$maxWaitMillisec);
if ($success != 1) {
    print $socket->lastErrorText() . "\n";
    exit;
}

//  Set maximum timeouts for reading an writing (in millisec)
$socket->MaxReadIdleMs = 10000;
$socket->MaxSendIdleMs = 10000;

//  Pretend, for the sake of the example, that the
//  ficticious server is going to send a "Hello World!"
//  after accepting the connection.
//  Note: Technically, the ReceiveString may not receive the
//  complete string, although it's highly probable given the short
//  length of the "Hello World!" message.
//  See this Chilkat blog post for more information:
//  http://www.cknotes.com/?p=302

$receivedMsg = $socket->receiveString();
if (is_null($receivedMsg)) {
    print $socket->lastErrorText() . "\n";
    exit;
}

//  Close the connection with the server
//  Wait a max of 20 seconds (20000 millsec)
$socket->Close(20000);

print $receivedMsg . "\n";
?>