(PHP Extension) Encode Integer to Hex or Base64 using N Bytes

Demonstrates how to write an integer to N bytes (little-endian or big-endian) and return the bytes in any encoding such as hex, base64, etc.

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

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<?php

// The version number (9_5_0) should match version of the Chilkat extension used, omitting the micro-version number.
// For example, if using Chilkat v9.5.0.48, then include as shown here:
include("chilkat_9_5_0.php");

$crypt = new CkCrypt2();

// 1193046 decimal is equal to 0x123456 hex.
$value = 1193046;

// Write the integer in 8 bytes using little-endian byte-order and return as hex
$bLittleEndian = true;
$s = $crypt->encodeInt($value,8,$bLittleEndian,'hex');
// The output is: 5634120000000000
print $s . "\n";

// Now use big-endian...
$bLittleEndian = false;
$s = $crypt->encodeInt($value,8,$bLittleEndian,'hex');
// The output is: 0000000000123456
print $s . "\n";

// Instead of hex, get the 8 bytes using base64.
$s = $crypt->encodeInt($value,8,$bLittleEndian,'base64');
// The output is: AAAAAAASNFY=
print $s . "\n";

?>