What happens when i put a slash (/) after a .php url?

Question

I have a simple question, but could not find the answer anywhere

say I have a site \"mysite.com\". I can access the index page by either typing \"mysite.com\" or \"

Answer 1

This is due to your Apache environmental variable called PATH_INFO.

PATH_INFO

Actually, PATH_INFO is related to the Apache Web Server serving PHP pages and not PHP per-say.

PATH_INFO is an environment variable set by Apache when the AcceptPathInfo directive is turned on. It will contain trailing pathname information that follows an actual filename (or non-existent file in an existing directory) will be accepted or rejected. Environment variables are then passed on to the Apache/CGI module in charge of rendering the page.

The variable is accessible in PHP using $_SERVER['PATH_INFO'].

For example, assume the location /test/ points to a directory that contains only the single file here.html. Then requests for /test/here.html/more and /test/nothere.html/more both collect /more as PATH_INFO.

This answer is copied from Andrew Moore Link to original answer