.htaccess file hide GET request in URL - .htaccess

Question

I am very new to .htaccess files and may have done mine wrong. I have been gathering snippets of code trying to get done what I want.
This is what I have in my file so far
I read this should be in your .htaccess file
Options +MultiViews
Options +FollowSymlinks
RewriteEngine On
RewriteBase /
This was added to force a redirect from HTTP to HTTPS
RewriteCond %{HTTPS} off
RewriteRule ^(.*)$ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]
This was added to remove .php at the end of all the files
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^([^\.]+)$ $1.php [NC,L]
This was added to remove the showing of /index when the home link was pressed
RewriteCond %{THE_REQUEST} ^.*\/index?\ HTTP/
RewriteRule ^(.*)index\.php?$ "/$1" [R=301,L]
I have tried a lot of ideas I found on both here and other sites from Google. I have had no luck hiding the GET request.
Currently, the URL looks like https://mysite.ca/event?id=123
What I would like it to look like is either https://mysite.ca/event/123
This is hosted on Godaddy and it is just a plain PHP site if that makes any difference.
Any ideas would be great!

Answer 1

First of all Options +MultiViews already removes .php extension so you don't need:
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^([^\.]+)$ $1.php [NC,L]
About your problem try this Rule:
RewriteRule ^event/([0-9]+)?$ event?id=$1 [NC]
Which changes url from example.com/event/<number> to example.com/event?id=<number>
Although, if your site makes infinite redirects then you should change it to:
RewriteRule ^events/([0-9]+)?$ event?id=$1 [NC]
This happens if you have some includes/headers that redirect back to event and creates infinite loop.