public function stream_flush()
    {
        if (!$this->handle) {
            return false;
        }
        self::restorePrev();
        $success = \fflush($this->handle);
        self::register();
        return $success;
    }
public function stream_flush()
    {
        if (!$this->handle) {
            return false;
        }
        self::restorePrev();
        $success = \fflush($this->handle);
        self::register();
        return $success;
    }
public function stream_flush ( ) { if ( ! $ this -> handle ) { return false ; } self :: restorePrev ( ) ; $ success = \ fflush ( $ this -> handle ) ; self :: register ( ) ; return $ success ; }
Flush the output

@return boolean

@see http://php.net/manual/en/streamwrapper.stream-flush.php
Flush the output