(PHP 4 >= 4.3.2, PHP 5)
streamWrapper::stream_write — Write to stream
This method is called in response to fwrite().
Remember to update the current position of the stream by number of bytes that were successfully written.
Should be stored into the underlying stream.
If there is not enough room in the underlying stream, store as much as possible.
Should return the number of bytes that were successfully stored, or 0 if none could be stored.
Emits E_WARNING if call to this method fails (i.e. not implemented).
If the return value is greater the length of data, E_WARNING will be emitted and the return value will truncated to its length.