(PHP ActiveX) Socket Send and Receive BinData

Demonstrates the Chilkat Socket ReceiveBdN and SendBd methods.

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')
$sock = new COM("Chilkat.Socket");

// --------------------------------------------------------------------
// This example uses the public TCP echo service at https://tcpbin.com/
// --------------------------------------------------------------------

$useTls = 0;
$port = 4242;
$maxWaitMs = 5000;
$success = $sock->Connect('tcpbin.com',$port,$useTls,$maxWaitMs);
if ($success == 0) {
    print $sock->LastErrorText . "\n";
    exit;
}

// Wait a max of 2 seconds for a response..
$sock->MaxReadIdleMs = 2000;

// Send 26 bytes contained in a Chilkat BinData
// For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.BinData')
$bdToSend = new COM("Chilkat.BinData");
$i = 0;
$byteVal = 65;
while ($i < 26) {
    $bdToSend->AppendByte($byteVal);
    $byteVal = $byteVal + 1;
    $i = $i + 1;
}

// Send the contents of the BinData
// Pass zero's in the 2nd and 3rd arguments to send the entire contents of the BinData.
$sock->SendBd($bdToSend,0,0);

// The tcpbin.com echo server only echoes after receiving an LF (linefeed char)
$sock->SendByte(10);

// The echo server will echo back whatever is sent to it.
// We should be able to read the same bytes back..
// For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.BinData')
$bdRecv = new COM("Chilkat.BinData");
// Receive the 26 bytes previously sent, plus the LF char.
$success = $sock->ReceiveBdN(27,$bdRecv);
if ($success == 0) {
    print $sock->LastErrorText . "\n";
    exit;
}

// Show the contents of bdRecv in hex format
print $bdRecv->getEncoded('hex') . "\n";

// Output:  4142434445464748494A4B4C4D4E4F505152535455565758595A0A

?>