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PHP get_headers()函数详解_PHP教程

程序员文章站 2024-04-04 13:28:23
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get_headers:发送服务器响应HTTP请求
get_headers(字符串url[链接格式])
get_headers()以数组的形式返回服务器HTTP请求。如果执行失败,将返回FALSE和一个错误的水平E_WARNING》。
可选参数设置为1,get_headers()能分析系统的响应速度和集数组中的键。

注意
:使用该函数需要把 php.ini里面的allow_url_fopen = On,才能使用。

实例如下
$url = http://www.ite5e.com;
print_r(get_headers($url));
print_r(get_headers($url, 1));
?>

打印结果
Array
(
[0] => HTTP/1.1 200 OK
[1] => Connection: close
[2] => Date: Tue, 16 Nov 2010 09:48:20 GMT
[3] => Content-Length: 52708
[4] => Content-Type: text/html
[5] => Content-Location: http://www.ite5e.com/index.html
[6] => Last-Modified: Tue, 16 Nov 2010 09:19:13 GMT
[7] => Accept-Ranges: bytes
[8] => ETag: "50d16c556f85cb1:b1f76"
[9] => Server: Microsoft-IIS/6.0
[10] => X-Powered-By: ASP.NET
)
Array
(
[0] => HTTP/1.1 200 OK
[Connection] => close
[Date] => Tue, 16 Nov 2010 09:48:21 GMT
[Content-Length] => 52708
[Content-Type] => text/html
[Content-Location] => http://www.ite5e.com/index.html
[Last-Modified] => Tue, 16 Nov 2010 09:19:13 GMT
[Accept-Ranges] => bytes
[ETag] => "50d16c556f85cb1:b1f76"
[Server] => Microsoft-IIS/6.0
[X-Powered-By] => ASP.NET
)

www.bkjia.comtruehttp://www.bkjia.com/PHPjc/486068.htmlTechArticleget_headers:发送服务器响应HTTP请求 get_headers(字符串url[链接格式]) get_headers()以数组的形式返回服务器HTTP请求。如果执行失败,将返回FALSE和一...