fbsql_change_user
  Change logged in user of the active connection
  
 
 
  Description
  
   bool fbsql_change_user
    ( string $user
   , string $password
   [, string $database
   [, resource $link_identifier
  ]] )
  
  
 
  Parameters
  
   
    - 
     user
- 
      
       The new user name.
       
- 
     password
- 
      
       The new user password.
       
- 
     database
- 
      
       If specified, this will be the default or current database after the
       user has been changed.
       
- 
link_identifier
- 
A FrontBase link identifier
returned by fbsql_connect or
fbsql_pconnect. If optional and not specified,
the function will try to find an open link to the FrontBase server and if no
such link is found it will try to create one as if
fbsql_connect was called with no arguments. 
 
 
  Return Values
  
   Returns TRUE on success or FALSE on failure.