PHP ActiveX

Receive a 32-bit Integer from a Socket

Demonstrates Socket.ReceiveInt32, which reads exactly four bytes as a signed 32-bit integer and stores the result in the ReceivedInt property. Byte order is selectable.

Background. Fixed-size integers and length prefixes are common building blocks for application-defined binary protocols. Byte order is selectable, with big-endian being network byte order.

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PHP ActiveX

<?php

$success = 0;

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

//  Connect to the server using TLS.
$bTls = 1;
$maxWaitMs = 5000;
$success = $socket->Connect('example.com',5000,$bTls,$maxWaitMs);
if ($success == 0) {
    print $socket->LastErrorText . "\n";
    exit;
}

//  Read exactly four bytes as a signed 32-bit integer and store the result in the ReceivedInt
//  property.  The argument selects byte order (1 = big-endian, network byte order).
$bBigEndian = 1;
$success = $socket->ReceiveInt32($bBigEndian);
if ($success == 0) {
    print $socket->LastErrorText . "\n";
    exit;
}

print 'Received 32-bit integer: ' . $socket->ReceivedInt . "\n";

?>