fdf_set_flags
  Sets a flag of a field
  
 
 
  Description
  
   bool fdf_set_flags
    ( resource $fdf_document
   , string $fieldname
   , int $whichFlags
   , int $newFlags
   )
  
  
 
  Parameters
  
   
    
     - 
fdf_document
- 
      
       The FDF document handle, returned by fdf_create,
       fdf_open or fdf_open_string.
       
- 
fieldname
- 
      
       Name of the FDF field, as a string.
       
- 
whichFlags
- 
      
       
- 
newFlags
- 
      
       
 
 
  Return Values
  
   Returns TRUE on success or FALSE on failure.