Are there any potential pitfalls to be aware of when using str_word_count() in PHP?

When using str_word_count() in PHP, one potential pitfall to be aware of is that it may not accurately count words in languages other than English, as it relies on whitespace to determine word boundaries. To address this issue, you can use the mb_str_word_count() function instead, which supports multibyte character encodings and can accurately count words in various languages.

$text = "Привет, мир!";
$wordCount = mb_str_word_count($text);
echo $wordCount; // Output: 2