New Parameters
  
   Several functions were given new, optional parameters in PHP 5.3:
  
  PHP Core:
  
   - 
    
     clearstatcache
     - Added clear_realpath_cacheandfilename.
- 
    
     copy
     - Added a stream context parameter, context.
- 
    
     fgetcsv
     - Added escape.
- 
    
     ini_get_all
     - Added details.
- 
    
     nl2br
     - Added is_xhtml.
- 
    
     parse_ini_file
     - Added scanner_mode.
- 
    
     round
     - Added mode.
- 
    
     stream_context_create
     - Added params.
- 
    
     strstr and stristr 
     - Added before_needle.
json:
  
   - 
    
     json_encode
     - Added options.
- 
    
     json_decode
     - Added depth.
Streams:
  
   - 
    
     stream_select,
     stream_set_blocking,
     stream_set_timeout, and
     stream_set_write_buffer now work with user-space
     stream wrappers.
    
   
sybase_ct:
  
   - 
    
     sybase_connect
     - Added new.
   New method parameters in PHP 5.3.0:
  
  PHP Core:
  
   - 
    
      Exception::__construct
     - Added previous.