jp4wc_tracking_fields フック

customizejp4wc_tracking_fields.php

function my_carrier_tracking_fields(){
	$tracking_fields = array(
		'jp4wc-delivery-company' => array(
			'type' => 'select',
			'id' => 'jp4wc_delivery_company',
			'label' => __('Delivery Company', 'jp4wc-pro'),
			'description' => __('<br />Please select a shipping company.', 'jp4wc-pro'),
			'class' => 'jp4wc-delivery-company',
			'options'     => array(
				'hoge'    => __( 'hoge', 'jp4wc-pro' ),
                'hogehoge'    => __( 'hogehoge', 'jp4wc-pro' ),

			),
			'value' => ($delivery_company) ? $delivery_company : ''
		),
		'jp4wc-tracking-id' => array(
			'type' => 'text',
			'id' => 'jp4wc_tracking_id',
			'label' => __('Tracking Number', 'jp4wc-pro'),
			'description' => __('Please enter your tracking number.', 'jp4wc-pro'),
			'class' => 'jp4wc-tracking-id',
			'value' => ($tracking_id) ? $tracking_id : ''
		),
	);
	return $tracking_fields;
}

add_filter( 'jp4wc_tracking_fields', 'my_carrier_tracking_fields', $post );