( resource stream )
Returns information about an existing stream.
The stream can be any stream created by fopen(),
fsockopen() and pfsockopen().
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.
You shouldn't use this value in a script.
The following items were added in PHP 4.3:
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 附录 L for more information about wrappers.
wrapper_data (mixed) - wrapper specific
data attached to this stream. See 附录 L 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
This function was introduced in PHP 4.3, but prior to this version,
socket_get_status() could be used to retrieve
the first four items, for socket based streams only.
In PHP 4.3 and later,
socket_get_status() is an alias for this function.
The following items were added in PHP 5.0:
mode (string) - the type of access required for
this stream (see Table 1 of the fopen() reference)
seekable (bool) - whether the current stream can
uri (string) - the URI/filename associated with this