Apache .htaccess Trick

 

<IfModule mod_rewrite.c>
RewriteEngine On

## turn off the Rewrite if in HTTPS Mode
RewriteCond %{HTTPS} off

## exclude some URL from the Rewrite Rule
RewriteCond %{REQUEST_URI} !/th/counterservice_order_receive\.php

# First rewrite to HTTPS:
# Don't put www. here. If it is already there it will be included, if not
# the subsequent rule will catch it.
RewriteRule .* https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]

# Now, rewrite any request to the wrong domain to use www.
# [NC] is a case-insensitive match
# add www only not have www. 
RewriteCond %{HTTP_HOST} !^www\. [NC]
RewriteRule .* https://www.%{HTTP_HOST}%{REQUEST_URI} [L,R=301]
</IfModule>