PHP Extension

Append Big-Endian or Little-Endian Integers

Demonstrates how to append integers in big-endian or little-endian byte order to a BinData.

Note: This example requires Chilkat v9.5.0.77 or greater.

PHP Extension

<?php

include("chilkat.php");

$success = false;

$bd = new CkBinData();

// The hex value of decimal 123456789 is 0x075BCD15
$x = 123456789;

// Appending little-endian causes bytes to be
// appended in the order 0x15, 0xCD, 0x5B, 0x07
$littleEndian = true;
$success = $bd->AppendInt4($x,$littleEndian);

print $bd->getEncoded('hex') . "\n";
// Output is: 15CD5B07

// Now append the same integer in big-endian byte order.
// Appending bit-endian causes bytes to be
// appended in the order 0x07, 0x5B, 0xCD, 0x15
$littleEndian = false;
$bd->AppendInt4($x,$littleEndian);

print $bd->getEncoded('hex') . "\n";
// bd now contains: 15CD5B07075BCD15

// -------------------------------------------
// Now do the same thing with 16-bit integers
$bd->Clear();

// 1234 decimal = 0x04D2 hex.
$x = 1234;

$littleEndian = true;
$bd->AppendInt2($x,$littleEndian);

print $bd->getEncoded('hex') . "\n";
// Output is: D204

$littleEndian = false;
$bd->AppendInt2($x,$littleEndian);

print $bd->getEncoded('hex') . "\n";
// Output is now: D20404D2

?>