(PHP 4 >= 4.3.0, PHP 5, PHP 7)
stream_get_meta_data — Retrieves header/meta data from streams/file pointers
$stream
) : array
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.
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.
Example #1 stream_get_meta_data() example
<?php
$url = 'http://www.example.com/';
if (!$fp = fopen($url, 'r')) {
trigger_error("Unable to open URL ($url)", E_USER_ERROR);
}
$meta = stream_get_meta_data($fp);
print_r($meta);
fclose($fp);
?>
The above example will output something similar to:
Array ( [wrapper_data] => Array ( [0] => HTTP/1.1 200 OK [1] => Server: Apache/2.2.3 (Red Hat) [2] => Last-Modified: Tue, 15 Nov 2005 13:24:10 GMT [3] => ETag: "b300b4-1b6-4059a80bfd280" [4] => Accept-Ranges: bytes [5] => Content-Type: text/html; charset=UTF-8 [6] => Set-Cookie: FOO=BAR; expires=Fri, 21-Dec-2012 12:00:00 GMT; path=/; domain=.example.com [6] => Connection: close [7] => Date: Fri, 16 Oct 2009 12:00:00 GMT [8] => Age: 1164 [9] => Content-Length: 438 ) [wrapper_type] => http [stream_type] => tcp_socket/ssl [mode] => r [unread_bytes] => 438 [seekable] => [uri] => http://www.example.com/ [timed_out] => [blocked] => 1 [eof] => )
Note:
This function does NOT work on sockets created by the Socket extension.