[WordPress] WooCommerce Menu, Part 1: Adding a Menu

00-init.php

<?php

public function init() {

	add_filter(
		'woocommerce_account_menu_items',
		array( $this, 'acme_menu_item' )
	);
}

01-hooked-function.php

<?php

public function acme_menu_item( $items ) {

	return
		array_merge(
			array_slice( $items, 0, count( $items ) - 1 ),
			array( 'acme' => 'Acme' ),
			array_slice( $items, count( $items ) - 1 )
		);
}

02-full-class.php

<?php

namespace Acme\Frontend;

class Acme_Menu {

	public function init() {

		add_filter(
			'woocommerce_account_menu_items',
			array( $this, 'acme_menu_item' )
		);
	}

	public function acme_menu_item( $items ) {

		return
			array_merge(
				array_slice( $items, 0, count( $items ) - 1 ),
				array( 'acme' => 'Acme' ),
				array_slice( $items, count( $items ) - 1 )
			);
	}
}