STREAM_GET_META_DATA(3) 1 STREAM_GET_META_DATA(3)
stream_get_meta_data - Retrieves header/meta data from streams/file pointers
SYNOPSIS
array stream_get_meta_data (resource $stream)
DESCRIPTION
Returns information about an existing $stream.
PARAMETERS
o $stream
- The stream can be any stream created by fopen(3), fsockopen(3) and pfsockopen(3).
RETURN VALUES
The result array contains the following items:
o timed_out (bool) - TRUE if the stream timed out while waiting for data on the last call to fread(3) or fgets(3).
o blocked (bool) - TRUE if the stream is in blocking IO mode. See stream_set_blocking(3).
o 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(3) instead of reading this item.
o 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.
o stream_type (string) - a label describing the underlying implementation of the stream.
o wrapper_type (string) - a label describing the protocol wrapper implementation layered over the stream. See "Supported Protocols
and Wrappers" for more information about wrappers.
o wrapper_data (mixed) - wrapper specific data attached to this stream. See "Supported Protocols and Wrappers" for more information
about wrappers and their wrapper data.
o mode (string) - the type of access required for this stream (see Table 1 of the fopen() reference)
o seekable (bool) - whether the current stream can be seeked.
o uri (string) - the URI/filename associated with this stream.
EXAMPLES
Example #1
stream_get_meta_data(3) 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] =>
)
NOTES
Note
This function does NOT work on sockets created by the Socket extension.
SEE ALSO
get_headers(3), $http_response_header.
PHP Documentation Group STREAM_GET_META_DATA(3)