How does the encoding process differ between PHP's utf8_encode function and .NET's System.Text.Encoding.GetEncoding method?

The issue is that PHP's utf8_encode function and .NET's System.Text.Encoding.GetEncoding method use different encoding methods for converting strings to UTF-8. To solve this issue, you can use PHP's mb_convert_encoding function with the 'UTF-8' encoding parameter to ensure consistent encoding across platforms.

// Convert string to UTF-8 using mb_convert_encoding
$utf8String = mb_convert_encoding($originalString, 'UTF-8', 'auto');