.htaccess useful tricks
RewriteEngine on
#RewriteCond %{HTTP_HOST} ^www\.(.*)$ [NC]
#RewriteRule ^(.*)$ http://%1/$1 [R=301,L]
RewriteCond %{HTTPS} !on
RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI} [R=301,L]
#RewriteEngine On
#RewriteCond %{HTTPS} !=on
#RewriteRule ^.*$ https://%{SERVER_NAME}%{REQUEST_URI} [R,L]
ErrorDocument 404 /index.php
#RewriteCond %{REQUEST_FILENAME} !-f
#RewriteRule ^([^\.]+)$ $1.php [NC,L]
RewriteEngine on
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME}\.html -f
RewriteRule ^(.*)$ $1.html
RewriteEngine on
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME}\.php -f
RewriteRule ^(.*)$ $1.php