首页
学习
活动
专区
工具
TVP
发布
精选内容/技术社群/优惠产品,尽在小程序
立即前往

get_headers

(PHP 5, PHP 7)

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

Description

代码语言:javascript
复制
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

代码语言:javascript
复制
<?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:

代码语言:javascript
复制
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

代码语言:javascript
复制
<?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() - Fetch all HTTP request headers

← base64_encode

get_meta_tags →

代码语言:txt
复制
 © 1997–2017 The PHP Documentation Group

Licensed under the Creative Commons Attribution License v3.0 or later.

扫码关注腾讯云开发者

领取腾讯云代金券