Search by tags Geodirectory

function.php

<?php
add_filter( 'geodir_search_terms_where', 'geodir_search_terms_where_custom_callback');
function geodir_search_terms_where_custom_callback( $terms_where ){
    if ( geodir_is_page( 'search' ) ) {
        global $wpdb, $geodir_post_type, $plugin_prefix, $dist, $snear, $s, $s_A, $s_SA, $search_term, $geodirectory;
		$searc_term_names = explode( ' ', $s );
		$table = geodir_db_cpt_table( $geodir_post_type );
        $s   = trim( $s );
        $s   = wp_specialchars_decode( $s, ENT_QUOTES );
        $s_A = wp_specialchars_decode( $s_A, ENT_QUOTES );
        $terms_sql           = '';
        
        if ( isset( $_REQUEST['stype'] ) ) {
            $post_types = esc_attr( wp_strip_all_tags( $_REQUEST['stype'] ) );
        } else {
            $post_types = 'gd_place';
        }
        
        /* get taxonomy */
        $taxonomies = geodir_get_taxonomies( $post_types, true );
        if ( $taxonomies ) {
            $taxonomies = implode( "','", $taxonomies );
            $taxonomies = "'" . $taxonomies . "'";
        } else {
            $taxonomies = '';
        }

        $gd_tagmatch_part = '';
        // Exact search with quotes
        $gd_exact_search = false;
        if ( $s != '' ) {
            $search_keyword = trim( wp_specialchars_decode( stripslashes( $s ), ENT_QUOTES ), '"' );
            $match_keyword = wp_specialchars_decode( stripslashes( $s ), ENT_QUOTES );

            if ( strpos( $match_keyword, '"' ) !== false && ( '"' . $search_keyword . '"' == $match_keyword ) ) {
                $gd_exact_search = true;
            }

            // remove quotes after checking if its an exact search, this is VERY IMPORTANT
            $s = $search_keyword;
        }
        
        $terms_new_where = '';
		if( !empty( $searc_term_names )){
			foreach( $searc_term_names as $key => $searc_term_name ){
				$terms_new_where .= $wpdb->prepare( " OR $wpdb->terms.name LIKE %s", array( $searc_term_name . '%' ) );
			}
		}
		
        if ( $gd_exact_search ) {
            $terms_where = $wpdb->prepare( " AND ($wpdb->terms.name LIKE %s ) ", array( $s ) );
        } else {
            $terms_where = $wpdb->prepare( " AND ($wpdb->terms.name LIKE %s OR $wpdb->terms.name LIKE %s OR $wpdb->terms.name IN ($s_A) ". $terms_new_where ." ) ", array( $s . '%', '%'. $s . '%' )  );
        }

    }

    return $terms_where;
}