dbplus_update
  Update specified tuple in relation
  
 
 
  Description
  
   int dbplus_update
    ( resource $relation
   , array $old
   , array $new
   )
  
  
 
  Parameters
  
   
    
     - 
relation
- 
      
       A relation opened by dbplus_open.
       
- 
old
- 
      
       The old tuple.
       
- 
new
- 
      
       The new tuple.
       
 
 
 
  Notes
  WarningThis function is
EXPERIMENTAL. The behaviour of this function, its name, and
surrounding documentation may change without notice in a future release of PHP.
This function should be used at your own risk.