htaccess redirect to https://www

Question

I have the following htaccess code:

RewriteEngine On
RewriteCond !{HTTPS} off
RewriteRule ^(.*)$ https://www.%{HTTP_HOST}%{RE         


        

Answer 1

BAD SOLUTION AND WHY!

Don't ever use the solution below because when you are using their code that is something like:

RewriteCond %{HTTPS} off
RewriteRule .* https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]

RewriteCond %{HTTP_HOST} !^www\. [NC]
RewriteRule .* https://www.example.com%{REQUEST_URI} [L,R=301]

The browser goes to:

http://example.com

Then redirects to:

https://example.com

Then redirects to:

https://www.example.com

This is too much request to the server.

Most of the answers even accepted one has this problem.

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BEST SOLUTION AND THE ANSWER

This code has an [OR] condition to prevent dual changes at url!

RewriteEngine on
RewriteCond %{HTTPS} off [OR]
RewriteCond %{HTTP_HOST} !^www\. [NC]
RewriteRule (.*) https://www.example.com%{REQUEST_URI} [R=301,L]