PHP

php 301 redirect

<?php // Permanent 301 Redirect via PHP
	header("HTTP/1.1 301 Moved Permanently");
	header("Location: http://domain.tld/new/location/");
	exit();
?>

301 redirect

#In .htaccess
  
Redirect 301 /old-page https://www.example.com/new-page

301 redirect

301, "Moved Permanently"—recommended for SEO
302, "Found" or "Moved Temporarily"
Meta Refresh 

301 redirect

#http to https and www to non-www
RewriteEngine On
RewriteCond %{HTTPS} off [OR]
RewriteCond %{HTTP_HOST} ^www. [NC]
RewriteCond %{HTTP_HOST} ^(?:www.)?(.+)$ [NC]
RewriteRule ^ https://%1%{REQUEST_URI} [L,NE,R=301]