title: issue with a php tag system
body: <p>I am trying to set up a tagging system, but i am having a little diffuculty here, if someone could help i would be very appreciative, anyhow i am just trying to query the database for the tags which are stuck into a row in the database of a table, and each tag is seperated by a comma, well i am trying to take each of those tags and create a link out of each one. </p>
  
  <p>once i query the database the output basically looks as follows:</p>
  
  <pre><code>tag1, tag2, tag3, tag4, tag5, tag6
  </code></pre>
  
  <p>and i want to be able to separate them.</p>