event_buffer_set_callback
  Set or reset callbacks for a buffered event
  
 
 
  Description
  
   bool event_buffer_set_callback
    ( resource $event
   , mixed $readcb
   , mixed $writecb
   , mixed $errorcb
   [, mixed $arg
  ] )
  
  
 
  Parameters
  
   
    
     - 
event
- 
      
       Valid buffered event resource.
       
- 
readcb
- 
      
       Callback to invoke where there is data to read, or NULL if
       no callback is desired.
       
- 
writecb
- 
      
       Callback to invoke where the descriptor is ready for writing, 
       or NULL if no callback is desired.
       
- 
errorcb
- 
      
       Callback to invoke where there is an error on the descriptor, cannot be
       NULL.
       
- 
arg
- 
      
       An argument that will be passed to each of the callbacks (optional).
       
 
 
  Return Values
  
   Returns TRUE on success or FALSE on failure.