Плагин Cyr-To-Lat нужно ли его устанавливать..? или обойтись правкой файла functions.php

/** перерегистрация ссылок - транслит Cyr-To-Lat перенесём в файл функций **/
function ctl_sanitize_title($title) {
global $wpdb;

$iso9_table = array(
'А' => 'A', 'Б' => 'B', 'В' => 'V', 'Г' => 'G', 'Ѓ' => 'G`',
'Ґ' => 'G`', 'Д' => 'D', 'Е' => 'E', 'Ё' => 'YO', 'Є' => 'YE',
'Ж' => 'ZH', 'З' => 'Z', 'Ѕ' => 'Z', 'И' => 'I', 'Й' => 'Y',
'Ј' => 'J', 'І' => 'I', 'Ї' => 'YI', 'К' => 'K', 'Ќ' => 'K',
'Л' => 'L', 'Љ' => 'L', 'М' => 'M', 'Н' => 'N', 'Њ' => 'N',
'О' => 'O', 'П' => 'P', 'Р' => 'R', 'С' => 'S', 'Т' => 'T',
'У' => 'U', 'Ў' => 'U', 'Ф' => 'F', 'Х' => 'H', 'Ц' => 'TS',
'Ч' => 'CH', 'Џ' => 'DH', 'Ш' => 'SH', 'Щ' => 'SHH', 'Ъ' => '``',
'Ы' => 'YI', 'Ь' => '`', 'Э' => 'E`', 'Ю' => 'YU', 'Я' => 'YA',
'а' => 'a', 'б' => 'b', 'в' => 'v', 'г' => 'g', 'ѓ' => 'g',
'ґ' => 'g', 'д' => 'd', 'е' => 'e', 'ё' => 'yo', 'є' => 'ye',
'ж' => 'zh', 'з' => 'z', 'ѕ' => 'z', 'и' => 'i', 'й' => 'y',
'ј' => 'j', 'і' => 'i', 'ї' => 'yi', 'к' => 'k', 'ќ' => 'k',
'л' => 'l', 'љ' => 'l', 'м' => 'm', 'н' => 'n', 'њ' => 'n',
'о' => 'o', 'п' => 'p', 'р' => 'r', 'с' => 's', 'т' => 't',
'у' => 'u', 'ў' => 'u', 'ф' => 'f', 'х' => 'h', 'ц' => 'ts',
'ч' => 'ch', 'џ' => 'dh', 'ш' => 'sh', 'щ' => 'shh', 'ь' => '',
'ы' => 'yi', 'ъ' => "'", 'э' => 'e`', 'ю' => 'yu', 'я' => 'ya'
);

$term = $wpdb->get_var("SELECT slug FROM {$wpdb->terms} WHERE name = '$title'");
if ( empty($term) ) {
$title = strtr($title, apply_filters('ctl_table', $iso9_table));
$title = preg_replace("/[^A-Za-z0-9`'_\-\.]/", '-', $title);
} else {
$title = $term;
}

return $title;
}
if ( !empty($_POST) || !empty($_GET['action']) && $_GET['action'] == 'edit' || defined('XMLRPC_REQUEST') && XMLRPC_REQUEST ) {
add_filter('sanitize_title', 'ctl_sanitize_title', 9);
add_filter('sanitize_file_name', 'ctl_sanitize_title');
}

function ctl_convert_existing_slugs() {
global $wpdb;

$posts = $wpdb->get_results("SELECT ID, post_name FROM {$wpdb->posts} WHERE post_name REGEXP('[^A-Za-z0-9\-]+') AND post_status = 'publish'");
foreach ( (array) $posts as $post ) {
$sanitized_name = ctl_sanitize_title(urldecode($post->post_name));
if ( $post->post_name != $sanitized_name ) {
add_post_meta($post->ID, '_wp_old_slug', $post->post_name);
$wpdb->update($wpdb->posts, array( 'post_name' => $sanitized_name ), array( 'ID' => $post->ID ));
}
}
$terms = $wpdb->get_results("SELECT term_id, slug FROM {$wpdb->terms} WHERE slug REGEXP('[^A-Za-z0-9\-]+') ");
foreach ( (array) $terms as $term ) {
$sanitized_slug = ctl_sanitize_title(urldecode($term->slug));
if ( $term->slug != $sanitized_slug ) {
$wpdb->update($wpdb->terms, array( 'slug' => $sanitized_slug ), array( 'term_id' => $term->term_id ));
}
}
}
function ctl_schedule_conversion() {
add_action('shutdown', 'ctl_convert_existing_slugs');
}
register_activation_hook(__FILE__, 'ctl_schedule_conversion');
/** перерегистрация ссылок - транслит Cyr-To-Lat перенесём в файл функций **/