PHP

Send BinData Contents over a Socket

Demonstrates Socket.SendBd, which sends bytes from a BinData beginning at an offset. A numBytes of 0 sends from the offset through the end of the data.

Background. The BinData receive methods accumulate raw bytes in a BinData object. A single receive returns only what is currently available, whereas the counted receive waits for an exact number of bytes.

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<?php

use Chilkat2\BinData;
use Chilkat2\Socket;

$socket = new Socket();

// Connect to the server using TLS.
$bTls = true;
$maxWaitMs = 5000;
try {
    $socket->Connect('example.com', 5000, $bTls, $maxWaitMs);

    // Place some bytes into a BinData to be sent.
    $bd = new BinData();
    $bd->AppendString('message payload', 'utf-8');

    // Send bytes from the BinData starting at the given offset.  A numBytes of 0 sends from the offset
    // through the end of the data.
    $socket->SendBd($bd, 0, 0);
} catch (\Chilkat2\Exception $e) {
    echo $e->getMessage(), "\n";
    exit;
}

echo 'Sent ', $bd->NumBytes, " bytes.\n";