title: php (fuzzy) search matching
body: <p>if anyone has ever submitted a story to digg, it checks whether or not the story is already submitted, I assume by a fuzzy search. </p>
  
  <p>I would like to implement something similar and want to know if they are using a php class that is open source?</p>
  
  <p>Soundex isnt doing it, sentences/strings can be up to 250chars in length</p>