What are the potential pitfalls of using a language template for multi-language PHP websites?

One potential pitfall of using a language template for multi-language PHP websites is that it may not handle all language-specific characters or formatting correctly, leading to display issues for certain languages. To solve this issue, it is important to ensure that the language template supports UTF-8 encoding and has proper handling for language-specific characters.

// Ensure UTF-8 encoding for language template
header('Content-Type: text/html; charset=utf-8');

// Use htmlspecialchars() function to properly handle language-specific characters
echo htmlspecialchars($language['welcome_message']);