Use PHP to obtain the current url path function and server variable _ PHP Tutorial-php Tutorial

Use PHP to obtain the functions and server variables of the current url path. PHP gets the function and server variable of the current url path: Code: Copy the code as follows :? Php $ pathusropt .. ectabcd; echo $ _ SERVER [DOCUMENT_ROOT]. br; get the SERVER documentation PHP to get the function and SERVER variable of the current url path:
Code:

The code is as follows:

$ Path =/usr/opt/../ect/abcd;
Echo $ _ SERVER ['document _ root']."
"; // Obtain the root variable of the server document (depending on the configuration in http. conf)
Echo $ _ SERVER ['php _ SELF ']."
"; // Obtain the path of the file that executes the code, which is related to the configuration in http. conf.
Echo _ FILE __."
"; // Get the absolute path variable of the file system
Echo dirname (_ FILE _); // function used to obtain the path of the folder where the FILE is located
Echo realpath ($ APIs );
?>

Returned value:

The code is as follows:

/Usr/opt/apache2/htdocs/
/Alias/aa. php
/Usr/opt/apache2/htdocs/kamap/aa. php
/Usr/opt/apache2/htdocs/kamap/
/Usr/etc/abcd

Pipeline code: the code is as follows :? Php $ path =/usr/opt/../ect/abcd; echo $ _ SERVER ['document _ root']. "br"; // Get The SERVER documentation...