QSA | QSA - CSS3 Selector Engine

@anubhava and @RavinderSingh13 have continued to help me learn and progress to where I am today with this script. This is what I have so far:

I have my URL https://example.com/?hfgshdsds.

I need to rewrite a rule to makes that even If I removed the question mark , the link will works as same as before, so my url need to be https://example.com/hfgshdsds.

For the moment on my .htaccess file I have only the rule that open the php without extension .php .

After rebuilding my site some URLs (where contents no more exist) have to be redirected to the /index.php. In the older version I had an index.php in the /hu/fulbeloves+fulbevaloval/ directory, that directory does not exist now. I would like to redirect the requests as follows:

1. /hu/fulbeloves+fulbevaloval/ => /index.php?q=hu/fulbeloves-fulbevaloval/
2. /hu/fulbeloves+fulbevaloval/index.php?placeid=1234 => /index.php?q=hu/fulbeloves-fulbevaloval/index.php?placeid=1234

the first case works properly, but if index.php is in the URL then it fails with 404 (Not Found)

my .htaccess file:

@anubhava and @RavinderSingh13 have helped me tremendously so far in understanding more about .htaccess and rewrite rules. However, even though both the first rule (with one parameter: $id) and the second rule (with two parameters: $id and $name) works for rewriting the url, my third rule I attempted with also two parameters ($id and $class) fails, and does not rewrite the final url. Below is my entire file so far. I would like to add that the $class parameter is in the format of a-class, b-class, etc., so maybe that could be a contributor to the the rewrite not working? Thank you for helping me continue to learn thus far!

I am having this error

I have been the whole day looking for solutions, including trying to set the proper directories as said here, also including the two .htaccess files required, but nothing works

https://github.com/selective-php/basepath#installation

This is my index.php

@anubhava provided an excellent answer for my previous question of doing an .htaccess internal rewrite with the below code, which worked for my one search query.

I'm having this rule which works just fine:

I'm trying to accomplish the following:

1. non-http force to https - works
2. www force to non-www - works
3. website loaded from subfolder (/web) - works
4. test.example.com load different subfolder (/test) - does not work

4, Does not work, the condition is met to go to /web. Can't understand how to change this into /test

the .htaccess code I use:

I am using this .htaccess to simulate a folder full of files (a simple REST API):