ibase_rollback_ret
  Roll back a transaction without closing it
  
 
 
  Description
  
   bool ibase_rollback_ret
    ([ resource $link_or_trans_identifier = NULL
  ] )
  
  
 
  Parameters
  
   
    
     - 
link_or_trans_identifier
- 
      
       If called without an argument, this function rolls back the default
       transaction of the default link. If the argument is a connection
       identifier, the default transaction of the corresponding connection
       will be rolled back. If the argument is a transaction identifier, the
       corresponding transaction will be rolled back. The transaction context
       will be retained, so statements executed from within this transaction
       will not be invalidated.
       
 
 
  Return Values
  
   Returns TRUE on success or FALSE on failure.