Exploring all of the taxonomies

bootstrap.php

add_action( 'init', __NAMESPACE__ . '\test_getting_taxonomies', 9999 );
function test_getting_taxonomies() {
	register_taxonomy('genre', 'post', array(
		'label' => 'Genre',
		'hierarchical' => true,
	));

	register_taxonomy_for_object_type( 'category', 'page' );

	if ( is_admin() ) {
		return;
	}

	$args = array(
//		'_builtin' => true,
	);

	$taxonomies = get_taxonomies( $args, 'objects' );

	ddd( $taxonomies );
}