Wordpress 上的规范页面

Question

I want to put some WordPress pages

mysite.com/page/?pag=2 or mysite.com/page/?pag=3 (4,5,..)

rel=canonical for mysite.com/page/ .

How can I do? I read something like this https://www.danielmorell.com/guides/htaccess-seo/crawling-indexing/put-rel-canonical-on-non-html-resources , but I'm not very unsure...

Anybody can help me with the code into my .htaccess ?

Thank You

Answer 1

Try to add next code in your file functions.php (active WP theme)

add_action('wp_head', 'canonical');
function canonical()
{
    // $paged = (get_query_var('paged')) ? get_query_var('paged') : null;
    $paged = $_GET['pag'] ?? null;

    if (!empty($paged)) {
        global $wp;
        $current_url = home_url( $wp->request );
        echo "<link rel=\"canonical\" href=\"{$current_url}\" />";
    }
}