(PHP ActiveX) Convert a File's Character Encoding from UTF-8 to UFT-8-BOM

To add a utf-8 BOM to a file is just a matter of prepending these 3 bytes to the file: 0xEF 0xBB 0xBF.

This may be difficult in some programming languages, or it may be trivial in either. Therefore, the Chilkat solution you see here might be helpful, or in a language such as C++, the Chilkat solution isn't really necessary because it's easy to do yourself.

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 assumes 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.Charset')
$charset = new COM("Chilkat.Charset");

$charset->FromCharset = 'utf-8';
$charset->ToCharset = 'bom-utf-8';

$success = $charset->ConvertFile('qa_data/txt/helloWorld.txt','qa_output/helloWorldBom.txt');
if ($success != 1) {
    print $charset->LastErrorText . "\n";
    exit;
}

print 'Success.' . "\n";

?>