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@Bobz-zg
Last active April 12, 2023 09:37
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Redirects wordpress posts to new url: site.com/blog/post-name
<?php
/**
* Add new rewrite rule
*/
function create_new_url_querystring() {
add_rewrite_rule(
'blog/([^/]*)$',
'index.php?name=$matches[1]',
'top'
);
add_rewrite_tag('%blog%','([^/]*)');
}
add_action('init', 'create_new_url_querystring', 999 );
/**
* Modify post link
* This will print /blog/post-name instead of /post-name
*/
function append_query_string( $url, $post, $leavename ) {
if ( $post->post_type != 'post' )
return $url;
if ( false !== strpos( $url, '%postname%' ) ) {
$slug = '%postname%';
}
elseif ( $post->post_name ) {
$slug = $post->post_name;
}
else {
$slug = sanitize_title( $post->post_title );
}
$url = home_url( user_trailingslashit( 'blog/'. $slug ) );
return $url;
}
add_filter( 'post_link', 'append_query_string', 10, 3 );
/**
* Redirect all posts to new url
* If you get error 'Too many redirects' or 'Redirect loop', then delete everything below
*/
function redirect_old_urls() {
if ( is_singular('post') ) {
global $post;
if ( strpos( $_SERVER['REQUEST_URI'], '/blog/') === false) {
wp_redirect( home_url( user_trailingslashit( "blog/$post->post_name" ) ), 301 );
exit();
}
}
}
add_filter( 'template_redirect', 'redirect_old_urls' );
@slackday
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Nice work! I read some people had trouble with post previews when adding this.

I got it working by changing two lines.

on L23 change if ( $post->post_type != 'post' ) to if ( $post->post_type != 'post' && $post->post_status != 'publish')

and L50 should change from if ( is_singular('post') ) to if ( is_singular('post') && !is_preview() )

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