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I would like to create a custom Wordpress page from a plugin displaying content that is not from Wordpress with 2 get parameters and apply rewriting rules on it.

Let's say I have a file called test.php. I would like with 2 get parameters to display content using the URL:

example.com/param1/param2/

I'm good on the plugin side (Admin, etc...) but have no clue about custom page. At the moment I have this code in my test.php file but I'm really not sure if that's the right way to do:

include('../../../wp-load.php');
include('myplugin.php');

global $myclass, $wpdb;

echo $myclass->get_setting('test');

Or would I need to check query vars parameters passed in URL and modify content accordingly?

I tried some stackoverflow answers without success so if you could hint me up on this. Thanks a lot in advance.

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  1. Create a page for this purpose, which you can filter its content later UNLESS you are working other way.

  2. Add the page ID to the rewrite rule init function:

    add_action('init', function() {
    
        $page = get_post( 2 ); // replace 2 with page ID
    
        add_rewrite_rule(
            '([^/]+)/([^/]+)/?$',
            'index.php?pagename=' . $page->post_name . '&my_param_1=$matches[1]&my_param_2=$matches[2]',
            'top'
        );
    
    });
    
  3. Append the query variables to the main query:

    add_filter('query_vars', function($vars) {
        $vars[] = "my_param_1";
        $vars[] = "my_param_2";
        return $vars;
    });
    

You should be done now and you need to flush the rewrite rules with either flush_rewrite_rules() hooked to init or wp, or go to Settings > Permalinks and hit the save button in the bottom.

Now a test > http://example.com/john/smith/ :

// first param
echo var_dump( get_query_var( 'my_param_1' ) ); // john

// second param
echo var_dump( get_query_var( 'my_param_2' ) ); // smith

I hope that works for you as it did in my local installation.

Edit: It would be much better if you make the parameters go after the page name like $page->post_name . '/([^/]+)/([^/]+)/?$' so you get /sample-page/john/smith/ This way you won't make any conflicts to existing contents and WordPress will serve the existing content initially before passing to your plugin OR add a unique prefix before the first param slug. Just a thought so.

  • Create a page for this purpose? You mean in admin pages? If yes do you think it can be done without? Thanks for your precious help!! – Émilie Robert May 17 '16 at 16:20
  • No, a front-end page. Pages > Add New or with wp_insert_post() in your plugin developer.wordpress.org/reference/functions/wp_insert_post – Samuel Elh May 17 '16 at 16:26
  • It would be better to work with a page so you benefit from the page template. After that you use add_filter('the_content' ...) to set the content for that page. Or even better, through a custom shortcode, I recommend this one. – Samuel Elh May 17 '16 at 16:27
  • Yes but what if I wanna display a page without any content? Just the 2 get variables? Thanks a lot for your help!! – Émilie Robert May 17 '16 at 16:31
  • 1
    No all good. You the one! – Émilie Robert May 17 '16 at 18:24

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