In what scenarios would using a custom word wrapping function in PHP, like mb_wordwrap, be more beneficial than relying on built-in text formatting capabilities of web browsers, especially when considering different text encodings and display environments?

When dealing with text content that may contain multibyte characters or different text encodings, using a custom word wrapping function like mb_wordwrap in PHP can ensure proper handling of line breaks and prevent text from being cut off in the middle of a multibyte character. This can be particularly important when displaying text in environments where the default text wrapping behavior of web browsers may not be reliable, such as in mobile applications or when working with languages that use complex character sets.

// Example of using mb_wordwrap to wrap text at a specific width while considering multibyte characters
$text = "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nunc non nulla non lectus consectetur consequat.";
$wrapped_text = mb_wordwrap($text, 20, "<br>", true);

echo $wrapped_text;