slickframework / http

     * @return int Returns the number of bytes written to the stream.

     * @throws \RuntimeException on failure.

     */

    public function write($string)

    {

        if (! $this->resource) {

            throw new RuntimeException('No resource available; cannot write');

        }

        if (! $this->isWritable()) {

            throw new RuntimeException('Stream is not writable');

        }

        $result = fwrite($this->resource, $string);

        if (false === $result) {

            throw new RuntimeException('Error writing to stream');

        }

        return $result;

    }

    /**

     * Returns whether or not the stream is readable.

     *     if no bytes are available.

     * @throws \RuntimeException if an error occurs.

     */

    public function read($length)

    {

        if (! $this->resource) {

            throw new RuntimeException('No resource available; cannot read');

        }

        if (! $this->isReadable()) {

            throw new RuntimeException('Stream is not readable');

        }

        $result = fread($this->resource, $length);

        if (false === $result) {

            throw new RuntimeException('Error reading stream');

        }

        return $result;

    }

    /**

     * Returns the remaining contents in a string