PH gets the current url path and server path summary (url gets the current path server path), ph current path_PHP tutorial

PH gets the current url path and server path summary (url gets the current path server path), ph current path

The following are some of the ways to get the path in php A little knowledge, hope it helps you!

1，$_SERVER["QUERY_STRING"] 说明：查询(query)的字符串

2，$_SERVER["REQUEST_URI"] 说明：访问此页面所需的URI

3，$_SERVER["SCRIPT_NAME"] 说明：包含当前脚本的路径

4，$_SERVER["PHP_SELF"] 说明：当前正在执行脚本的文件名

　

demo: 1
http://www.xxx.com/(Open the homepage directly) Result: $_SERVER["QUERY_STRING"] = "" $_SERVER["REQUEST_URI"] = "/" $_SERVER[ "SCRIPT_NAME"] = "/index.php" $_SERVER["PHP_SELF"] = "/index.php"

demo: 2
http://www.xxx.com/?p=1 (with query) Result: $_SERVER["QUERY_STRING"] = "p=1" $_SERVER["REQUEST_URI"] = "/?p=1" $_SERVER["SCRIPT_NAME"] = "/index.php" $_SERVER["PHP_SELF"] = "/index.php"

demo 3
http://www.xxx.com/index.php?p=1&q=xxx Result: $_SERVER["QUERY_STRING"] = "p=1&q=xxx" $_SERVER["REQUEST_URI" ] = "/index.php?p=1&q=xxx" $_SERVER["SCRIPT_NAME"] = "/index.php" $_SERVER["PHP_SELF"] = "/index.php"

$_SERVER["QUERY_STRING"] gets the query statement. It can be seen from the example that the value after ? is obtained. $_SERVER["REQUEST_URI"] obtains the value after http://www.xxx.com, including / $_SERVER ["SCRIPT_NAME"] Get the path of the current script, such as: index.php $_SERVER["PHP_SELF"] The file name of the currently executing script

Current url: "http://".$_SERVER['HTTP_HOST'].$_SERVER['PHP_SELF']

To summarize, for QUERY_STRING, REQUEST_URI, SCRIPT_NAME and PHP_SELF, an in-depth understanding will help us correctly call these four values ​​​​in the $_SERVER function. Learn the differences between the four variables QUERY_STRING, REQUEST_URI, SCRIPT_NAME and PHP_SELF in the $_SERVER function through detailed examples.

$_SERVER["REQUEST_URI"]: Get the complete URL of the current request [except domain name]

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