Change stream options.
This method is called to set options on the stream.
Since Windows systems do not allow it and it is not needed for most use cases anyway, this method is not supported on local files and will trigger an error and return false. If needed, custom subclasses can provide OS-specific implementations for advanced use cases.
int $option: One of:
int $arg1: If option is:
int $arg2: If option is:
bool TRUE on success, FALSE otherwise. If $option is not implemented, FALSE should be returned.
public function stream_set_option($option, $arg1, $arg2) {
trigger_error('stream_set_option() not supported for local file based stream wrappers', E_USER_WARNING);
return FALSE;
}