$ _SERVER ['HTTP_REFERER']丢失

  • Z时代
  • 2024-01-10
  • 分类：问答

我想$_SERVER['HTTP_REFERER']在我的网站上使用，但得到以下信息：

Notice: Undefined index: HTTP_REFERER

我试过打印$_SERVER。输出以下内容：

Array
(
    [HTTP_HOST] => 192.168.1.10
    [HTTP_USER_AGENT] => Mozilla/5.0 (X11; Ubuntu; Linux i686; rv:15.0) Gecko/20100101 Firefox/15.0
    [HTTP_ACCEPT] => text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
    [HTTP_ACCEPT_LANGUAGE] => en-us,en;q=0.5
    [HTTP_ACCEPT_ENCODING] => gzip, deflate
    [HTTP_CONNECTION] => keep-alive
    [PATH] => /sbin:/usr/sbin:/bin:/usr/bin
    [SERVER_SIGNATURE] => Apache/2.2.3 (CentOS) Server at 192.168.1.10 Port 80
    [SERVER_SOFTWARE] => Apache/2.2.3 (CentOS)
    [SERVER_NAME] => 192.168.1.10
    [SERVER_ADDR] => 192.168.1.10
    [SERVER_PORT] => 80
    [REMOTE_ADDR] => 192.168.1.77
    [DOCUMENT_ROOT] => /var/www/html
    [SERVER_ADMIN] => root@localhost
    [SCRIPT_FILENAME] => /var/www/html/sandeep/test/hash.php
    [REMOTE_PORT] => 53851
    [GATEWAY_INTERFACE] => CGI/1.1
    [SERVER_PROTOCOL] => HTTP/1.1
    [REQUEST_METHOD] => GET
    [QUERY_STRING] => 
    [REQUEST_URI] => /sandeep/test/hash.php
    [SCRIPT_NAME] => /sandeep/test/hash.php
    [PHP_SELF] => /sandeep/test/hash.php
    [REQUEST_TIME] => 1347365919
)

谁能帮助我找到HTTP_REFERER或建议替代方案HTTP_REFERER？

回答：

从文档中：

页面（如果有的话）的地址，该页面将用户代理引至当前页面。这是由用户代理设置的。并非所有的用户代理都将设置此功能，有些用户代理提供了将HTTP_REFERER修改为功能的功能。简而言之，它不能真正被信任。

以上是 $ _SERVER ['HTTP_REFERER']丢失 的全部内容， 来源链接： utcz.com/qa/436212.html

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