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

The following are some tips on obtaining paths in php. I hope it will be helpful to 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"] obtains 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]

The arrangement is slightly unclear, please point it out...

The above introduces the summary of PH getting the current url path and the server path (url getting the current path server path), including the content. I hope it will be helpful to friends who are interested in PHP tutorials.