301 redirect to homepage

hello i would like to ask how is the best way to make all 301 redirects to homepage? I have an old site with urls of posts and now i am working with host file. I deleted all the previous posts. Now i want somehow to redirect to homepage when the user types the old urls of the posts, so it will not affect the SEO.
I added these lines on 404.php
<?php
header(“HTTP/1.1 301 Moved Permanently”);
header(“Location: “.get_bloginfo(‘url’));
exit();
?>
like here https://www.wpbeginner.com/wp-tutorials/how-to-redirect-your-404-page-to-the-home-page-in-wordpress/

Is it correct??

• This topic was modified 7 years, 11 months ago by Alex4842.