What are the potential drawbacks of manually creating new files to resolve character encoding problems in PHP?

When dealing with character encoding problems in PHP, manually creating new files with the correct encoding can be time-consuming and error-prone. It is not a scalable solution and can lead to inconsistencies in the encoding across different files. A more efficient approach would be to use PHP functions like `mb_convert_encoding()` to convert the encoding of the content dynamically.

// Example of using mb_convert_encoding() to convert the encoding of a string
$content = file_get_contents('file.txt');
$newContent = mb_convert_encoding($content, 'UTF-8', 'ISO-8859-1');
file_put_contents('file.txt', $newContent);