How can PHP developers ensure that the truncated string remains readable and meaningful to users?

When truncating a string in PHP, developers can ensure that the truncated string remains readable and meaningful to users by using functions like `mb_strimwidth()` or `substr()` to limit the length of the string while preserving complete words. Additionally, developers can add an ellipsis (...) at the end of the truncated string to indicate that the text has been shortened.

function truncateString($string, $length) {
    if (mb_strlen($string) > $length) {
        $string = mb_substr($string, 0, $length - 3) . '...';
    }
    return $string;
}

// Example usage
$longString = "This is a long string that needs to be truncated for readability.";
$truncatedString = truncateString($longString, 20);
echo $truncatedString;