Add japanese providers for WooCommerce Shipment Tracking

add-japanese-providers-for-woocommerce-shipment-tracking.php

<?php
/**
 * Add japanese providers for WooCommerce Shipment Tracking
 *
 * @param array $providers
 *
 * @return array
 */
add_filter( 'wc_shipment_tracking_get_providers', function ( $providers ) {
	$providers = array_merge( $providers, [
		'Japan' => [
			'ヤマト運輸' => 'https://toi.kuronekoyamato.co.jp/cgi-bin/tneko',
			'佐川急便'  => 'https://k2k.sagawa-exp.co.jp/p/sagawa/web/okurijoinput.jsp',
			'日本郵便'  => 'https://trackings.post.japanpost.jp/services/srv/search/input',
			'日本通運'  => 'https://www.nittsu.co.jp/support/search',
			'西濃運輸'  => 'https://track.seino.co.jp/kamotsu/GempyoNoShokai.do',
			'福山通運'  => 'https://corp.fukutsu.co.jp/situation/tracking_no',
			'第一貨物'  => 'http://www.daiichi-kamotsu.co.jp/chase/contact_num/',
		],
	] );

	return $providers;
} );