PHP Dokumentation: Function stream-get-meta-data
12. Januar 2010 von werner
stream_get_meta_data
(PHP 4 >= 4.3.0, PHP 5)
stream_get_meta_data — Retrieves header/meta data from streams/file pointers
Beschreibung
Returns information about an existing stream.
Parameter-Liste
- stream
The stream can be any stream created by fopen(), fsockopen() and pfsockopen().
Rückgabewerte
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.
Hinweis: 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 List of Supported Protocols/Wrappers for more information about php-dokumentation-wrappers.
wrapper_data (mixed) – wrapper specific data attached to this stream. See List of Supported Protocols/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.
Changelog
| Version | Beschreibung |
|---|---|
| 5.0.0 | The following entries were added in the returned array: mode, seekable, and uri. |
| 4.3.0 | The following entries were added in the returned array: stream_type, wrapper_type, wrapper_data, and filters. |
| 4.3.0 | socket_get_status() is an alias for this function. Prior to PHP 4.3.0, it was used to retrieve the first four items, for socket based streams only. |
Beispiele
Beispiel #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);
?>Das oben gezeigte Beispiel erzeugteine ähnliche Ausgabe wie:
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] => )
Anmerkungen
Hinweis: This function does NOT work on sockets created by the Socket extension.
Siehe auch
- get_headers() – Ruft alle Header ab, die der Server als Antwort auf einen HTTP-Request versendet
- $http_response_header
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