rewrite structure

TD_Custom_Rewrites.php

<?php

class TD_Custom_Rewrites {

    public function __construct() {

        // set up rewrite tags
        add_rewrite_tag('%query1%', '([^&]+)');
        add_rewrite_tag('%query2%', '([^&]+)');
        add_rewrite_tag('%query3%', '([^&]+)');
        add_rewrite_tag('%query4%', '([^&]+)');

        // this rewrite rule uses /browse-by/ as a hardcoded URL structure and a page ID of 7 to show the results.
        // /browse-by/sector/type/location/hours
        // e.g. /browse-by/accounting/permanent/wokingham/full-time/
        add_rewrite_rule( '^browse-by/([^/]*)?(/[^/]*)?(/[^/]*)?(/[^/]*)?/?', 'index.php?page_id=7&query1=$matches[1]&query2=$matches[2]&query3=$matches[3]&query4=$matches[4]', 'top' );

        $this->register_taxonomies();

    }

    // this function should be called from within a page template. 
    public function generate_query() {

        $maybes = [];
        
        $maybes[] = $wp_query->query_vars['query1'];
        $maybes[] = $wp_query->query_vars['query2'];
        $maybes[] = $wp_query->query_vars['query3'];
        $maybes[] = $wp_query->query_vars['query4'];

        foreach ( $maybes as &$maybe ) {

            if ( $check = get_term_by( "slug", $maybe, "sector") ) {

                $params['sector'] = str_replace("-", " ", $check->slug);

            }elseif ( $check = get_term_by( "slug", $maybe, "type") ) {

                $params['job_type'] = str_replace("-", " ", $check->slug);

            }elseif ( $check = get_term_by( "slug", $maybe, "location") ) {

                $params['search_keywords'] = $check->slug;

            }elseif ( $check = get_term_by( "slug", $maybe, "hours") ) {

                switch ( $check->slug ) {
                    case "full-time": 
                        $params['search_preferred_hours'] = 2;
                        break;
                    case "part-time":
                        $params["search_preferred_hours"] = 1;
                        break;		
                }

            }

        }

        print_r( $params );

        // you'll then need to get these params into a WP_Query object to return the right results. 

    }

    public function register_taxonomies() {

        // this is only needed if you haven't registered your taxonomies yet.

        register_taxonomy(
            'type',
            'job',
            array(
                'label' => __( 'Type' ),
                'rewrite' => array( 'slug' => 'type' ),
                'hierarchical' => true,
            )
        );

        register_taxonomy(
            'sector',
            'job',
            array(
                'label' => __( 'Sector' ),
                'rewrite' => array( 'slug' => 'sector' ),
                'hierarchical' => true,
            )
        );

        register_taxonomy(
            'location',
            'job',
            array(
                'label' => __( 'Location' ),
                'rewrite' => array( 'slug' => 'location' ),
                'hierarchical' => true,
            )
        );

        register_taxonomy(
            'hours',
            'job',
            array(
                'label' => __( 'Preferred Hours' ),
                'rewrite' => array( 'slug' => 'hours' ),
                'hierarchical' => true,
            )
        );


        
    }

}

new TD_Custom_Rewrites();

?>