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get_headers

Description

The get_headers of URL for PHP fetches all the headers sent by the server in response to an HTTP request.

Syntax

get_headers(
    string $url,
    bool $associative = false,
    ?resource $context = null
): array|false

Parameters

url

The target URL.

associative

If the optional associative parameter is set to true, get_headers() parses the response and sets the array's keys.

context

A valid context resource created with stream_context_create().

Return

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

Examples

1 · url

<?

$url = "https://osbo.com";

$return = get_headers($url);

print_r($return);

Array
(
    [0] => HTTP/1.1 200 OK
    [1] => Connection: close
    [2] => Cache-Control: no-store,no-transform
    [3] => link: <https://osbo.com/>;rel="canonical"
    [4] => x-robots-tag: noarchive,noimageindex
    [5] => Content-Type: text/html; charset=UTF-8
    [6] => Transfer-Encoding: chunked
    [7] => Date: Tue, 17 Mar 2026 15:44:33 GMT
    [8] => Strict-Transport-Security: max-age=31536000; includeSubDomains; preload
    [9] => X-Content-Type-Options: nosniff
)

2 · associative

<?

$url = "https://osbo.com";
$associative = true;

$return = get_headers($url, $associative);

print_r($return);

Array
(
    [0] => HTTP/1.1 200 OK
    [Connection] => close
    [Cache-Control] => no-store,no-transform
    [link] => <https://osbo.com/>;rel="canonical"
    [x-robots-tag] => noarchive,noimageindex
    [Content-Type] => text/html; charset=UTF-8
    [Transfer-Encoding] => chunked
    [Date] => Tue, 17 Mar 2026 15:44:33 GMT
    [Strict-Transport-Security] => max-age=31536000; includeSubDomains; preload
    [X-Content-Type-Options] => nosniff
)

3 · context

<?

$options =
[
    'http' =>
    [
        'method' => 'HEAD'
    ]
];

$url = "https://osbo.com";
$associative = true;
$context = stream_context_create($options);

$return = get_headers($url, $associative, $context);

print_r($return);

Array
(
    [0] => HTTP/1.1 200 OK
    [Connection] => close
    [Cache-Control] => no-store,no-transform
    [link] => <https://osbo.com/>;rel="canonical"
    [x-robots-tag] => noarchive,noimageindex
    [Content-Type] => text/html; charset=UTF-8
    [Date] => Tue, 17 Mar 2026 15:44:34 GMT
    [Strict-Transport-Security] => max-age=31536000; includeSubDomains; preload
    [X-Content-Type-Options] => nosniff
)

4 · status

<?

$url = "https://osbo.com";

$return = get_headers($url);

$string = $return[0];
$offset = 9;
$length = 3;

$status = substr($string, $offset, $length);

echo $status;

200