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I added custom checkbox to the comment form. I am trying to write the post ID of this comment in the database. But without success. I'm trying with something like this:

add_action( 'comment_post', 'save_chbox_in_db' );

function save_chbox_in_db() {
     $post_id = ??? // Can't get id...
     insert_to_db ( $email, $post_id ); // custom function
}

I tested these options:

global $post;
$post_id = $post->ID();

global $wp_query;
$post_id = $wp_query->post->ID;

$post_id = get_queried_object_id();

$post_id = get_the_ID();

As a result, I get zero or nothing. Where is the problem? Something with "comment_post" action? Or do I make some stupid mistake?

2

comment_post hook pass to attached functions 3 parameters. The fourth parameter of add_action() indicates to how many parameters the attached function will be able to access.

add_action( 'comment_post', 'save_chbox_in_db', 10, 3 );

function save_chbox_in_db( $comment_ID, $comment_approved, $commentdata )
{
     $post_id = (int)$commentdata['comment_post_ID'];
     //
     // other code
     //
}
  • This is it! I was focused on a different path. Thank you very much! – Mark71 Jul 30 at 10:05

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