What are the potential pitfalls of using English tutorials for PHP scripts that involve special characters in non-English languages?

When using English tutorials for PHP scripts involving special characters in non-English languages, a potential pitfall is that the encoding may not be handled correctly, leading to character encoding issues and displaying garbled text. To solve this, it is important to ensure that the PHP script uses the appropriate character encoding, such as UTF-8, to properly handle special characters in non-English languages.

// Set the appropriate character encoding
header('Content-Type: text/html; charset=UTF-8');