title: How to change list to CSV, and vice versa, in PHP
body: <p>I have a text file like....</p>
  <blockquote>
  <p>arfc@net.xz</p>
  <p>editor@magazine.com</p>
  <p>nafi@cyber.net</p>
  <p>nau@times.com</p>
  <p>jai@mail.com</p>
  </blockquote>
  <p>I want to convert it to CSV with the help of a little bit PHP, and I want to know also how it can be reversed...ie from CSV to an ordered, or un-ordered list.....kindly help me please :)</p>