array stream_get_meta_data ( resource $stream )
Returns information about an existing stream.
The result array contains the following items: timed_out (bool) - TRUE if the stream timed out while waiting for data on the last call to fread() or fgets(). blocked (bool) - TRUE if the stream is in blocking IO mode. See stream_set_blocking(). eof (bool) - TRUE if the stream has reached end-of-file. Note that for socket streams this member can be TRUE even when unread_bytes is non-zero. To determine if there is more data to be read, use feof() instead of reading this item. unread_bytes (int) - the number of bytes currently contained in the PHP's own internal buffer. Note: You shouldn't use this value in a script. stream_type (string) - a label describing the underlying implementation of the stream. wrapper_type (string) - a label describing the protocol wrapper implementation layered over the stream. See Supported Protocols and Wrappers for more information about wrappers. wrapper_data (mixed) - wrapper specific data attached to this stream. See Supported Protocols and Wrappers for more information about wrappers and their wrapper data. filters (array) - and array containing the names of any filters that have been stacked onto this stream. Documentation on filters can be found in the Filters appendix. mode (string) - the type of access required for this stream (see Table 1 of the fopen() reference) seekable (bool) - whether the current stream can be seeked. uri (string) - the URI/filename associated with this stream.