如何使用ajax返回成功/失败消息？

Question

I'm using MailChimp's API and I can successfully subscribe an email address by passing an email address to a specific URL. Once the email is submitted, MailChimp echoes a success or failure code.

Example: myurl.com/subscribe.php?email=[e-mail]

What I need help with

My form isn't displaying the success/failure messages that I've based on MailChimps returned codes. What am I doing wrong?

http://jsfiddle.net/WarrenBee/c4MWX/

Answer 1

As long as I'm guessing on comments, I'll guess on an answer. I went to http://yoursite.com/subscribe/mcapi_listSubscribe.php?email=[e-mail] in my browser. I got this:

Unable to load listSubscribe()! Code=220 Msg="[e-mail]" has been banned

So, you've got a problem in your server-side code. It can't load a function named listSubscribe(). Also, regardless, you're not returning stuff in JSON format, but your ajax call is expecting such.