(PHP 4 >= 4.3.2, PHP 5, PHP 7)
streamWrapper::stream_read — Read from stream
Remember to update the read/write position of the stream (by the number of bytes that were successfully read).
How many bytes of data from the current position should be returned.
If there are less than
bytes available, return as many as are available. If no
more data is available, return either
FALSE or an
E_WARNING se uma chamada a essa função falha
(não implementada, por exemplo).
If the return value is longer then
E_WARNINGerror will be emitted, and excess data will be lost.
streamWrapper::stream_eof() is called directly after calling streamWrapper::stream_read() to check if EOF has been reached. If not implemented, EOF is assumed.