Is there a function for this? get_corresponding_id_for(111) -> 222

Production email:
Please click on this verification link https://mysite.com/?page_id=3784?ur_token=tHqFNQVPjsnsvCMPyPyNgiGlA4DbJYi80nd5Rko4MxpMLEhDbGeXY0VUhtNU1LTEFFYUJsSGh0L3h0QT09 to confirm registration.

Workstation email:
https://mysite.com/my-account/?ur_token=1zsGilG1RA95bvMQoPuiP9uBQtgcAsyS9l1jzyp3vLlq7CaCPmTHRLM2Eza2g3ZHNYamdDYnBFc2NsQT09

The production link with page_id parameter was not working (did not set the verification of the user) while the workstation link with my-account parameter did.

After resetting owner to daemon:daemon recursively on the htdocs folder the production link also had the my-account parameter and was working.
So this issue has been resolved now.

For some reason the {{ur_login}} tag is not mentioned in the documentation at:
https://docs.wpeverest.com/docs/user-registration/email-settings/smart-tags/

I’m relatively new to WP, so forgive my indiscretions.

I have a library of information that I can list to a user. I have a custom php file that generates this, and I just display it in a page. When a user clicks on an element in the library, they get a detail of it. All the while, I have not left the page.

What I would like to do is provide the ability to have comments display uniquely for each element in the library. I dont want to create a unique page for everything in the library, since all the content is built on demand. It “seems” like I want to create a “page_id” based on what element I want, and then when I pull up the comments_template, it will retrieve it for that page_id. I just assume I can do something like this. Does anyone have a suggestion on the course I should pursue? Does this make sense? All of my research has been in vain to this point. Thanks,

Brian

https://www.parcopiano.com/murgese/

this displays the german contents of the portfolio also there are two filter buttons to show the german catagories.

I have recreated this for the english pages with this link

https://www.parcopiano.com/en/murgese/

However the filters just do not work, the slug IDs look correct but I am completely lost.

I really need some help with this and would really appreciate any assistance. If I am posting in the wrong place just tell me and I will go elsewhere.

Many thanks

Graham

**
 * Validates whether this comment is allowed to be made.
 *
 * @since 2.0.0
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param array $commentdata Contains information on the comment
 * @return mixed Signifies the approval status (0|1|'spam')
 */
function wp_allow_comment( $commentdata ) {
	global $wpdb;

if(is_page(2999)){

} else {

	// Simple duplicate check
	// expected_slashed ($comment_post_ID, $comment_author, $comment_author_email, $comment_content)
	$dupe = $wpdb->prepare(
		"SELECT comment_ID FROM $wpdb->comments WHERE comment_post_ID = %d AND comment_parent = %s AND comment_approved != 'trash' AND ( comment_author = %s ",
		wp_unslash( $commentdata['comment_post_ID'] ),
		wp_unslash( $commentdata['comment_parent'] ),
		wp_unslash( $commentdata['comment_author'] )
	);
	if ( $commentdata['comment_author_email'] ) {
		$dupe .= $wpdb->prepare(
			"OR comment_author_email = %s ",
			wp_unslash( $commentdata['comment_author_email'] )
		);
	}
	$dupe .= $wpdb->prepare(
		") AND comment_content = %s LIMIT 1",
		wp_unslash( $commentdata['comment_content'] )
	);
	if ( $wpdb->get_var( $dupe ) ) {
		/**
		 * Fires immediately after a duplicate comment is detected.
		 *
		 * @since 3.0.0
		 *
		 * @param array $commentdata Comment data.
		 */
		do_action( 'comment_duplicate_trigger', $commentdata );
		if ( defined( 'DOING_AJAX' ) ) {
			die( __('Duplicate comment detected; it looks as though you’ve already said that!') );
		}
		wp_die( __( 'Duplicate comment detected; it looks as though you’ve already said that!' ), 409 );
	}
}

If its page id 2999 then duplicate is allowd else not.

Even if i change the if statement to the fallow it doesn’t work

/**
 * Validates whether this comment is allowed to be made.
 *
 * @since 2.0.0
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param array $commentdata Contains information on the comment
 * @return mixed Signifies the approval status (0|1|'spam')
 */

function wp_allow_comment( $commentdata ) {
	global $wpdb;

$string = "home";
          $container = $post->post_title;
            if(strstr($container,$string)) {

} else {

https://www.ads-software.com/plugins/theme-my-login/

// Switch to Twenty Sixteen theme when we being on page_id.
Conditional_Themes_Manager::register( ‘twentyten’, function() {
$id = get_the_ID();
return ( $id== “153”);
} );

Other switches does work ,like
// Switch to Twenty Sixteen theme when we being on 2015.
Conditional_Themes_Manager::register( ‘twentyten’, function() {
return ( date( ‘Y’ ) == 2015 );
} );
But the switch based on the page id does not.
How can I get this to work properly?
I also tried with code like
global $wp_query;
$postID = $wp_query->post->ID;
return ( $postID == 153 );
but it does not seems to listen to me

https://www.ads-software.com/plugins/wp-conditional-themes/

Can i get the page id in 404 page from where it is landed. So that i can show appropriate messages ?

for eg :

link 1 : xxx.com/need-this-slug-1/
link 2 : xxx.com/need-this-slug-2/

when it redirects to 404 error page, i need to show different error messages and give links to different sites.

So in 404 i need to know the parent url from where it got redirected.

Thanks in advance,
Prasad