问题
I followed this tutorial for inserting new field in billing address section in Magento checkout.
I added new module, form field in billing.phtml page as described in this tutorial. I make sure that the module is enabled in advanced section in admin panel. And the attribute is saved in eav_attribute, sales_flat_order_address, sales_flat_quote_address tables.
The issue is when I make place order the checkout page become broken and nothing can done.
How can I solve this? Please help..
来源：https://stackoverflow.com/questions/29794666/issue-while-adding-custom-field-in-billing-address-section-in-magento