What are the limitations of using iconv() for converting file names with non-English characters in PHP?

The limitations of using iconv() for converting file names with non-English characters in PHP include potential loss of information due to character set limitations and inconsistencies in handling certain characters. To address this issue, it is recommended to use the mb_convert_encoding() function in PHP, which provides better support for multibyte character sets and can handle a wider range of characters.

// Example code snippet using mb_convert_encoding() to convert file names with non-English characters
$originalFileName = "файл.txt"; // Non-English file name
$convertedFileName = mb_convert_encoding($originalFileName, 'UTF-8', 'ISO-8859-5'); // Convert to UTF-8 encoding
echo $convertedFileName; // Output: файл.txt