What are the best practices for handling text formatting in PHP, especially for specific text selections?

When handling text formatting in PHP, especially for specific text selections, it is best to use PHP's built-in string functions and regular expressions to manipulate the text as needed. This can include tasks such as capitalizing specific words, highlighting certain phrases, or applying custom formatting rules. By using these tools effectively, you can easily modify text content dynamically based on specific requirements.

// Example: Capitalize the first word of a sentence
$text = "this is a sample sentence.";
$text = ucfirst($text);
echo $text;