Get return value of wp_insert_comment (comment ID)

wp_insert_comment is both a hook and a function. Once a comment is left on your blog, this action hook will be triggered, allowing you to modify the comment.

A very simple example would be:

add_action('wp_insert_comment','my_function',100,2);

function my_function($comment_id, $comment_object) {
    // Now you have access to $comment_id, save it, print it, do whatever you want with it
}

If you attempt and add a comment by using wp_insert_comment, then this function will return the ID of the inserted comment after it’s done:

function add_new_comment($input, $post_id, $author, $user_id){
    // Get the current time 
    $time = current_time('mysql');
    // Set the arguments
    $data = array(
        'comment_post_ID' => $post_id,
        'comment_author' => $author,
        'comment_author_email' => '[email protected]',
        'comment_author_url' => 'URL HERE',
        'comment_content' => $input,
        'comment_type' => '',
        'comment_parent' => 0,
        'user_id' => $user_id,
        'comment_author_IP' => 'IP HERE',
        'comment_agent' => 'USER AGENT HERE',
        'comment_date' => $time,
        'comment_approved' => 1,
    );
    // Store the ID in a variable
    $id = wp_insert_comment($data);
    // Return the ID
    return $id;
}

Now, if you call the add_new_comment() like the following, it will add a new comment and return its ID:

echo add_new_comment('My First Commnent', '123' , 'Admin' , '1');

Which is what you are looking for.

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