(PHP 4 >= 4.3.0, PHP 5)
stream_context_set_option — Sets an option for a stream/wrapper/context
$stream_or_context
   , string $wrapper
   , string $option
   , mixed $value
   )$stream_or_context
    , array $options
    )
    Sets an option on the specified context.  value
    is set to option for wrapper
  
stream_or_contextThe stream or context resource to apply the options to.
optionsThe options to set for the default context.
Note:
optionsmust be an associative array of associative arrays in the format $arr['wrapper']['option'] = $value.Refer to context options and parameters for a listing of stream options.
   Returns TRUE on success or FALSE on failure.