(PHP 4 >= 4.3.3, PHP 5 <= 5.0.5, PECL mnogosearch >= 1.0.0)
udm_hash32 — Return Hash32 checksum of given string
$agent
   , string $str
   )
   udm_hash32() will take a string
   str and return a quite unique 32-bit hash
   number from it. 
  
Returns a 32-bit hash number.