PHP Settings page navigation dynamic active class style additions

In PHP-making projects, it is common to separate the header from the footer. Page header navigation in the selected state will have some style, such as active, when the page in the homepage, the homepage of the navigation should also be the active style, then, how to control these styles with PHP add and hide it?

1. Embed PHP Super global variable _server in the page

<?php  $url =$_server[' Request_uri ')//the URI required to access this page. For example, "/index.html";  echo $url;//output content is/index.html?>

　　

2. Add the following PHP code to the page header navigation style: <?php echo $url = = ' index.php '? ' Active ': ';? >

For example:

<ul>  <li class= "<?php echo $url = = ' index.php '? ' Active ': ';? > "><a href=" index.php "> Home </a></li></ul>

　　

。。。

In addition: PHP programming often need to use some of the server's information, special $_server detailed parameters to organize, convenient for later use.

$_server[' php_self ') #当前正在执行脚本的文件名, related to document root. $_server[' argv '] #传递给该脚本的参数. $_server[' argc '] #包含传递给程序的命令行参数的个数 (if run in command-line mode). $_server[' Gateway_interface ') #服务器使用的 the version of the CGI specification. For example, "cgi/1.1". $_server[' server_name '] #当前运行脚本所在服务器主机的名称. $_server[' Server_software '] #服务器标识的字串, given in the header in response to the request. $_server[' Server_protocol '] #请求页面时通信协议的名称和版本. For example, "http/1.0". $_server[' Request_method '] #访问页面时的请求方法. For example:, POST, PUT. A string of $_server[' query_string '] #查询 (QUERY). $_server[' Document_root '] #当前运行脚本所在的文档根目录. Defined in the server configuration file. $_server[' http_accept ' #当前请求的 ACCEPT: The contents of the head. $_server[' Http_accept_charset '] #当前请求的 Accept-charset: The contents of the head. For example: "Iso-8859-1,*,utf-8". $_server[' http_accept_encoding '] #当前请求的 accept-encoding: The contents of the head. For example: "gzip". $_server[' http_accept_language '] #当前请求的 accept-language: The contents of the head. For example: "en". $_server[' http_connection '] #当前请求的 CONNECTION: The contents of the head. For example: "Keep-alive". $_server[' Http_host '] #当前请求的 HOST: The contents of the head. $_server[' Http_referer '] #链接到当前页面的前一页面的 URL address. $_server[' http_user_agent '] #当前请求的 user_agent: The contents of the head. $_server[' HTTPS '-if accessed via HTTPS, it is set to a non-null value (on), otherwise off$_server[' remote_addr ') #正在浏览当前页面用户的 IP address is returned. $_server[' Remote_host '] #正在浏览当前页面用户的主机名. $_server[' Remote_port '] #用户连接到服务器时所使用的端口. $_server[' Script_filename '] #当前执行脚本的绝对路径名. $_server[' server_admin ' #管理员信息 $_server[' server_port ') #服务器所使用的端口 $_server[' server_signature '] #包含服务器版本和虚拟主机名的字符串. $_server[' path_translated ' #当前脚本所在文件系统 basic path (not the document root). $_server[' Script_name '] #包含当前脚本的路径. This is useful when the page needs to point to itself. $_server[' Request_uri '] #访问此页面所需的 URI. For example, "/index.html". $_server[' Php_auth_user '] #当 PHP runs in the Apache module mode and is using the HTTP authentication feature, which is the user name entered by the user. $_server[' PHP_AUTH_PW '] #当 PHP runs in the Apache module mode and is using the HTTP authentication feature, which is the password that the user entered. $_server[' Auth_type '] #当 PHP runs in the Apache module mode and is using the HTTP authentication feature, which is the type of authentication.

　　

PHP Settings page navigation dynamic active class style additions