algolia_get_settings.php

<?php

define('THEME_PATH', get_stylesheet_directory() . '/');

function algolia_get_settings($index_name) {
    $settings_file_path = THEME_PATH . 'algolia-json/' . $index_name . '-settings.json';
    
    if (!file_exists($settings_file_path)) {
        return false;
    }
    return json_decode(
        file_get_contents($settings_file_path),
        true
    );
}