title: finding related items using mysql?
body: <p>im trying to figure out how to find related topics items using mysql &amp; php, this is my table for topics</p>
  
  <pre><code>topics{id, topic, founder,vote_up, vote_down date}
  </code></pre>
  
  <p>for instance say i was on topic page of <code>php</code></p>
  
  <pre><code>topic {3,php,getaway, 6, 8, 20.06.2009 ect]
  </code></pre>
  
  <p>how would i find all the related topics to this topic</p>