PHP stream_get_meta_data() Function

The PHP stream_get_meta_data() function returns information about an existing stream.

Syntax

stream_get_meta_data(stream)

Parameters

Return Value

Returns 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() and fgets().
• blocked (bool) - true if the stream is in blocking IO mode. See stream_set_blocking() function for more detail.
• eof (bool) - true if the stream has reached end-of-file.
• unread_bytes (int) - the number of bytes currently contained in the PHP's own internal buffer.
• 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.
• wrapper_data (mixed) - wrapper specific data attached to this stream.
• mode (string) - the type of access required for this stream.
• seekable (bool) - whether the current stream can be seeked.
• uri (string) - the URI/filename associated with this stream.

Example:

The example below shows the usage of stream_get_meta_data() function.

<?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 output of the above code will be similar to:

Array
(
    [timed_out] => 
    [blocked] => 1
    [eof] => 
    [wrapper_data] => Array
        (
            [0] => HTTP/1.1 200 OK
            [1] => Age: 482058
            [2] => Cache-Control: max-age=604800
            [3] => Content-Type: text/html; charset=UTF-8
            [4] => Date: Sun, 24 Oct 2021 04:57:08 GMT
            [5] => Etag: "3147526947+ident"
            [6] => Expires: Sun, 31 Oct 2021 04:57:08 GMT
            [7] => Last-Modified: Thu, 17 Oct 2019 07:18:26 GMT
            [8] => Server: ECS (dna/63B4)
            [9] => Vary: Accept-Encoding
            [10] => X-Cache: HIT
            [11] => Content-Length: 1256
            [12] => Connection: close
        )

    [wrapper_type] => http
    [stream_type] => tcp_socket/ssl
    [mode] => r
    [unread_bytes] => 1256
    [seekable] => 
    [uri] => http://www.example.com/
)