For some reason, the default filter attached to pingback errors, will not send an error message unless the error code is 48. From wp-includes/commment.php: function xmlrpc_pingback_error( $ixr_error ) { if ( $ixr_error->code === 48 ) return $ixr_error; return new IXR_Error( 0, ” ); }
On what posts did you expect a trackback? SimpleX should support trackbacks, but displays them in a separate box.
If you want to receive only linkbacks from your own WordPress site, then try both of these: But if you want to allow all that were sent as trackbacks (where the comment type is trackback), then just ignore the second snippet below, which I added because in default/core themes like Twenty Twenty-One, both pingbacks and … Read more
This code was tested in a local testing Multisite. Seems ok, but found a minor glitch: – after running it all drafts/pending posts disappear from the listing page, but appear again after a refresh, no idea why… Although I believe it’s pretty harmless, please backup your database before running this /* * Turn off trackback/pingbacks … Read more
The plugin you mentioned is only a single function so it shouldn’t be too heavy on your setup. It uses the comments_template filter to inject the pingbacks/trackbacks list into your page. But the plugin is using an extra manual SQL query and the template is constructed by hand, so there’s a room for improvements/simplifications. A … Read more
Actually, it turned out quite easy, as the post can be retrieved from the slug: // get the url of the reffering post $ping_slug = $comment->comment_author_url; // keep just the slug $ping_slug = trim(parse_url($ping_slug, PHP_URL_PATH), “https://wordpress.stackexchange.com/”); // get the post from the slug $ping_post = get_page_by_path($ping_slug, OBJECT, ‘post’); // find the post author data $ping_author … Read more
The visual representation of a comment form (or lack of it) do not have any impact on the ability to receive comments, and spammers usually don’t care at all what is in your form. WordPress have a well publicized end point to which all comments are being sent (and while I don’t remember the detail … Read more
Here’s my improvement on it with less code for the same results: add_action( ‘plugins_loaded’, ‘wpse_158700_buffer’ ); function wpse_158700_buffer() { # Enable output buffering ob_start( ‘wpse_158700_pingback_url’ ); } function wpse_158700_pingback_url( $buffer ) { # If in the admin panel, don’t run if ( is_admin() && ( ! defined( ‘DOING_AJAX’ ) || ! DOING_AJAX ) ) { … Read more
Add topsy.com/trackback (or whatever they are using for those links now) to Settings > Discussion > Comment Blacklist.
To disable pingback and trackbacks, add this code to your functions.php file in your child theme: add_action( ‘pre_ping’, ‘wpse_190346_internal_pingbacks’ ); add_filter( ‘wp_headers’, ‘wpse_190346_x_pingback’); add_filter( ‘bloginfo_url’, ‘wpse_190346_pingback_url’) ; add_filter( ‘bloginfo’, ‘wpse_190346_pingback_url’) ; add_filter( ‘xmlrpc_enabled’, ‘__return_false’ ); add_filter( ‘xmlrpc_methods’, ‘wpse_190346_xmlrpc_methods’ ); function wpse_190346_internal_pingbacks( &$links ) { // Disable internal pingbacks foreach ( $links as $l => $link … Read more