(PECL ssdeep >= 1.0.0)
ssdeep_fuzzy_hash — Create a fuzzy hash from a string
$to_hash
   )
   ssdeep_fuzzy_hash() calculates the hash of 
   to_hash using » 
   context-triggered piecewise hashing, and returns that hash.
  
to_hashThe input string.
   Returns a string on success, FALSE otherwise.