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URL Functions
PHP Manual

# get_headers

Fetches all the headers sent by the server in response to a HTTP request

### Description

array get_headers ( string `$url` [, int `$format` = 0 ] )

get_headers returns an array with the headers sent by the server in response to a HTTP request.

### Parameters

`url`

  The target URL.

`format`

  If the optional `format` parameter is set to non-zero, get_headers parses the response and sets the array's keys.

### Return Values

Returns an indexed or associative array with the headers, or `FALSE` on failure.

### Changelog

Version | Description
--- | ---
5.1.3 | This function now uses the default stream context, which can be set/changed with the stream_context_set_default function.

### Examples

Example #1 get_headers example

`<?php
$url = 'http://www.example.com';
print_r(get_headers($url));
print_r(get_headers($url, 1));
?>`

The above example will output something similar to:

    Array
    (
        [0] => HTTP/1.1 200 OK
        [1] => Date: Sat, 29 May 2004 12:28:13 GMT
        [2] => Server: Apache/1.3.27 (Unix)  (Red-Hat/Linux)
        [3] => Last-Modified: Wed, 08 Jan 2003 23:11:55 GMT
        [4] => ETag: "3f80f-1b6-3e1cb03b"
        [5] => Accept-Ranges: bytes
        [6] => Content-Length: 438
        [7] => Connection: close
        [8] => Content-Type: text/html
    )

    Array
    (
        [0] => HTTP/1.1 200 OK
        [Date] => Sat, 29 May 2004 12:28:14 GMT
        [Server] => Apache/1.3.27 (Unix)  (Red-Hat/Linux)
        [Last-Modified] => Wed, 08 Jan 2003 23:11:55 GMT
        [ETag] => "3f80f-1b6-3e1cb03b"
        [Accept-Ranges] => bytes
        [Content-Length] => 438
        [Connection] => close
        [Content-Type] => text/html
    )

Example #2 get_headers using HEAD example

`<?php
// By default get_headers uses a GET request to fetch the headers. If you
// want to send a HEAD request instead, you can do so using a stream context:
stream_context_set_default(
array(
'http' => array(
'method' => 'HEAD'
)
)
);
$headers = get_headers('http://example.com');
?>`

### See Also

- apache_request_headers