How to Convert WordPress Tags first letter in capital of every word

Question

Is there any theme function code that converts the first letter of each WordPress Tag to uppercase. As I have a wordpress plugin that generates tags through API, the issue is that the plugin always generates tags in lowercase. I am looking for a theme function code that creates all tags with the first letter in uppercase.

Tags that are generated via API plugin

beautiful, cute, eye, face, fashion, girl, glamour, hair, lips

I need the below output:

Beautiful, Cute, Eye, Face, Fashion, Girl, Glamour, Hair, Lips

Answer 1

Try this

add_filter('get_term', 'ucfletter_tags', 10, 2);

function ucfletter_tags($term, $taxonomy) {
    
if ($taxonomy == 'post_tag') {
    
    $new_name = ucfirst($term->name);
    $term->name = $new_name;
    
}

    return $term;
}