Add Custom Post Type and Taxonomy Terms to wp_link_query. Link search function in WordPress editor add Custom Post Types and Taxonomy Terms

for-include-or-functions.php

<?php
//don't re add the php tag above


add_filter('wp_link_query', 'cab_add_custom_post_type_archive_link', 10, 2);
/**
 * Add Custom Post Type archive to WordPress search link query
 * Author: https://github.com/mthchz/editor-archive-post-link/blob/master/editor-archive-post-link.php
 */
function cab_add_custom_post_type_archive_link( $results, $query ) {
   
    if ( $query['offset'] > 0 ) : // Add only on the first result page
        return $results;
    endif;

    $match = '/' . str_remove_accents( $query['s'] ) . '/i';
    foreach( $query['post_type'] as $post_type ) :
        $pt_archive_link = get_post_type_archive_link($post_type);
        $pt_obj = get_post_type_object($post_type);
        if ( $pt_archive_link !== false && $pt_obj->has_archive !== false ) : // Add only post type with 'has_archive'
            if ( preg_match( $match, str_remove_accents( $pt_obj->labels->name ) ) > 0 ) :
                array_unshift( $results, array(
                    'ID' => $pt_obj->has_archive,
                    'title' => trim( esc_html( strip_tags($pt_obj->labels->name) ) ) ,
                    'permalink' => $pt_archive_link,
                    'info' => 'Archive',
                ) );
            endif;
        endif; //end post type archive links in link_query
    endforeach;

    return $results;
}


//* Remove accents
function str_remove_accents( $str, $charset='utf-8' ) {
    $str = htmlentities($str, ENT_NOQUOTES, $charset);
    $str = preg_replace('#&([A-za-z])(?:acute|cedil|caron|circ|grave|orn|ring|slash|th|tilde|uml);#', '\1', $str);
    $str = preg_replace('#&([A-za-z]{2})(?:lig);#', '\1', $str);
    $str = preg_replace('#&[^;]+;#', '', $str);
    return $str;
}


add_filter( 'wp_link_query', 'cab_wp_link_query_term_linking', 99, 2 );
/**
 * Add Term links to WordPress search link query
 * Modified from: https://gist.github.com/emzo/6f86f50199c09d2f4ce6863401a307fb
 * Ref: https://codex.wordpress.org/Function_Reference/get_taxonomies
 *      https://developer.wordpress.org/reference/classes/wp_term_query/__construct/
 *      https://developer.wordpress.org/reference/functions/get_terms/
 *      http://php.net/manual/en/function.array-diff.php
 */
function cab_wp_link_query_term_linking( $results, $query ) {

    //* Query taxonomy terms.
    $taxonomies = get_taxonomies( array(
        'show_in_nav_menus' => true
    ) , 'names');
    
    //* Add to the array any taxonomies you do not want 
	$exclude = array( 
		'media_category', 
		'tag', 
	); 
	
    $taxonomies = array_diff( $taxonomies, $exclude );
    
    //* Get the terms of the taxonomies
    $terms = get_terms( $taxonomies, array(
        'name__like' => $query['s'],
        'number'     => 20,
        'hide_empty' => true,
    ));

    //* Terms
    if ( ! empty( $terms ) && ! is_wp_error( $terms ) ):
        foreach( $terms as $term ):
            $results[] = array(
                'ID'        => 'term-' . $term->term_id,
                'title'     => html_entity_decode($term->name, ENT_QUOTES, get_bloginfo('charset')) ,
                'permalink' => get_term_link(intval($term->term_id) , $term->taxonomy) ,
                'info'      => get_taxonomy($term->taxonomy)->labels->singular_name,
            );
        endforeach;
    endif;
    
    return $results;
}