Add jobs listing page on rankMath breadcrumb

rankmath-wpjobmanager.php

<?php
/*
Plugin Name: RankMath & WP Job Manager
Version: 1.0.0
Plugin URI: https://beapi.fr
Description: Add jobs listing page on rankMath breadcrumb
Author: Be API
Author URI: https://beapi.fr
*/

/**
 * Add jobs listing page on rankMath breadcrumb
 *
 * @param array $crumbs The crumbs array.
 * @param Breadcrumbs $this Current breadcrumb object.
 */
add_filter( 'rank_math/frontend/breadcrumb/items', function ( $crumbs, $class ) {
	if ( ! is_singular( 'job_listing' ) ) {
		return $crumbs;
	}

	$jobs_page_id = (int) get_option( 'job_manager_jobs_page_id' );
	$jobs_page    = get_post( $jobs_page_id );
	if ( empty( $jobs_page ) || is_wp_error( $jobs_page ) ) {
		return $crumbs;
	}

	$home_obj = array_shift( $crumbs );

	array_unshift(
		$crumbs,
		array(
			0                => $jobs_page->post_title,
			1                => get_permalink( $jobs_page ),
			'hide_in_schema' => false,
		)
	);
	array_unshift( $crumbs, $home_obj );

	return $crumbs;
}, 10, 2 );