在编辑地址页面添加自定义字段

https:// add fields to edit address page
function woo_add_edit_address_fields( $fields ) {
 
  $new_fields = array(
        'date_of_birth'     => array(
        'label'             => __( 'Date of birth', 'woocommerce' ),
        'required'          => false,
        'class'             => array( 'form-row' ),
      ),
    );
 
  $fields = array_merge( $fields, $new_fields );
 
    return $fields;
 
}
 
add_filter( 'woocommerce_default_address_fields', 'woo_add_edit_address_fields' );

在哪里添加此代码？

将PHP代码放在主题或子主题functions.php文件的底部。