WordPress的add_rewrite_rule不导航到正确的页面

Question

I need to change this url in: " http://example.com/class-schedules?selectedCatId=52 " to become: " http://example.com/class-schedules/classCSCP " , but it navigates to incorrect page. Any help !!

I used this method in order to rewrite the url

function events_custom_rewrite() {
add_rewrite_rule("class-schedules/classCPA/?", 'index.php?page_id=4321&selectedCatId=52', 'top');
}

Answer 1

You need the add_rewrite_tag too.

Please include this code and clear the permalink cache in your settings.

function custom_rewrite_tag() {
  add_rewrite_tag('%selectedCatId%', '([^&]+)');
}
add_action('init', 'custom_rewrite_tag', 10, 0);

function custom_rewrite_rule() {
    add_rewrite_rule('^class-schedules/classCPA/([^/]*)/([^/]*)/?','index.php?page_id=4321&selectedCatId=$matches[1]','top');
}
add_action('init', 'custom_rewrite_rule', 10, 0);

With this code you should ( I didn't test it! ) access your site like this:

http://example.com/class-schedules/classCPA/52

And in your theme you can access the variable like this:

global $wp_query;
$selectedCatId = $wp_query->query_vars['selectedCatId']; //52

IMPORTANT: Do not forget to flush and regenerate the rewrite rules database after modifying rules. From WordPress Administration Screens, Select Settings -> Permalinks and just click Save Changes without any changes.

https://codex.wordpress.org/Rewrite_API/add_rewrite_tag https://codex.wordpress.org/Rewrite_API/add_rewrite_rule