How to understand the Index.php/explore-page/colors/pink-color address bar

How do you understand the address bar shaped like a index.php/explore-page/colors/pink-color?
The link address previously contacted is the form: Index.php?key1=val1&key2=val2
But which of the Index.php/explore-page/colors/pink-color is the parameter name and which is the value?
------Solution--------------------
This is someone else's frame route definition.
It depends on how the route is defined.


------Solution--------------------
Index.php/explore-page/colors/pink-color
This is the URL in path_info format
which
Index.php is the handler
/explore-page/colors/pink-color is the passed parameter
Each section represents a parameter, this is 3.

After the program has obtained the parameter string from $_server[' Path_info '), press/Cut the array
How to interpret the meaning of an array element, a developer will decide
You wrote the procedure, it's up to you.
That is, the parameters are interpreted by location

and Index.php?key1=val1&key2=val2
Parameters are interpreted by name

