Redirect from wordpress htaccess to http to https

Solution:1

Try this

RewriteEngine On 
RewriteCond %{SERVER_PORT} 80 
RewriteRule ^(.*)$ https://www.example.com/$1 [R,L]

Please refer to https://serverguy.com/servers/redirect-http-to-https/

Solution:2

If available always use https, it is securer for obvious reasons, it is better received by search engines and browsers nowadays, it is just overall preferable.

1 Backup

Should go without saying, but backup your database. There is always a possibility that something goes wrong. Additionally, make sure you have access – ssh, ftp, etc – to your files, and you have a possibility to access – ssh (mysql, wp-cli), phpmyadmin, etc – the database.

2 Set URL

Either under Dashboard > Settings > General:

Or use constants in wp-config.php:

define( 'WP_HOME','https://example.com' ); 
define( 'WP_SITEURL','https://example.com' ); 

3 Update database

Either use the Search Replace DB tool:

• https://interconnectit.com/products/search-and-replace-for-wordpress-databases/
• https://github.com/interconnectit/Search-Replace-DB

Or make use the WP-CLI command search-replace:

• https://developer.wordpress.org/cli/commands/search-replace/

Example: wp search-replace 'http://example.test' 'http://example.com'

Both above options have an option to dry run, test, before making changes.

Bonus, this plugin gets recommended a lot by people I generally trust:

• https://wordpress.org/plugins/better-search-replace/

Note: I personally have no experience with the plugin; I’m adding it for completeness’ sake.

4 Enforce redirecting to https

Either via adding the following lines to the .htaccess:

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

Or you can generally set this via your server administration gui, so plesk, cpanel, webmin or whatever your hosting provider is offering.