(PHP Extension) Demonstrate Binary Data Encoding Methods

Demonstrates binary data encoding methods.

Note: This example requires Chilkat v9.5.0.64 or later.

Chilkat PHP Downloads PHP Extension for Windows, Linux, MacOS, Alpine Linux, Solaris

<?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");

$binData = new CkBinData();

// Append 10 bytes: 00, 01, 02, 03, 04, 05, 06, 07, 08, 09
$binData->AppendEncoded('00010203040506070809','hex');

// Show that binData contains 10 bytes.
print 'num bytes = ' . $binData->get_NumBytes() . "\n";

// Get as base64
print 'base64: ' . $binData->getEncoded('base64') . "\n";

// Get a chunk of the binary data.
// The 1st byte is at index 0.
// The output should be "02030405"
$offset = 2;
$numBytes = 4;
print 'chunk: ' . $binData->getEncodedChunk($offset,$numBytes,'hex') . "\n";

// Copy the bytes to a StringBuilder using the base64url encoding
$sb = new CkStringBuilder();
$binData->GetEncodedSb('base64url',$sb);
print 'base64url: ' . $sb->getAsString() . "\n";

// Remove a chunk from the binary data
$offset = 2;
$numBytes = 4;
$binData->RemoveChunk($offset,$numBytes);
// The bytes remaining are 00,01,06,07,08,and 09
print 'after removing chunk: ' . $binData->getEncoded('hex') . "\n";

?>