Thread: Search sort code explanation

Search sort code explanation

Hi there,

I'm attempting to customize the search sort option. I'm using a child theme. I've looked through the the code and found the function in template-tags.php
It's a bit confusing without much comments but one line sticks out, line 462 "$options = apply_filters('va_list_sort_ui', $options );"

Where can I find the function "va_list_sort_ui"?

And also is there a detailed explanation or a guide to modify the options?

I'm quite proficient in WP and PHP.

Thanks