(PHP 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.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows Note: The php_com_dotnet.dll may need to be enabled inside of php.ini.

<?php

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

// For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Socket')
$socket = new COM("Chilkat.Socket");

// 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 = $socket->receiveString();
if ($socket->LastMethodSuccess != 1) {
    print $socket->LastErrorText . "\n";
    exit;
}

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

print $receivedMsg . "\n";

?>