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How-to and Troubleshooting
(@chuck)
New Member
Joined: 1 year ago
Everyone commenting on our website is a guest, without a login and password.
Once a comment has been made by a "name" and an "email address", we would like to require all future comments that use that "name" to have to use that "email address", or give an error message something like "name already in use by someone else, please choose a different name".
The idea being that we do not want different people using the same "name".
Is this already possible with a combination of plugins and or addons?
How can this be done?
(@chuck)
New Member
Joined: 1 year ago
How do I find all of the previously used 'comment_author' + 'comment_author_email' pairs to verify that the current 'comment_author' has not previously been associated with a different 'comment_author_email' ?
(@asti)
Joined: 8 years ago
Illustrious Member
Posts: 8195
Dec 12, 2024 10:00 am
@chuck
Here is the code provided by our developers:
add_filter('preprocess_comment', function ($commentdata) {
global $wpdb;
$sql = "SELECT `comment_author_email` FROM `{$wpdb->comments}` WHERE `comment_author` = %s LIMIT 1";
$author_email = $wpdb->get_var($wpdb->prepare($sql, $commentdata['comment_author']));
if (!empty($author_email) && $commentdata['comment_author_email'] !== $author_email) {
wp_die('name already in use by someone else, please choose a different name.');
}
return $commentdata;
});
Insert the code into your WordPress active theme's function.php file.
(@asti)
Illustrious Member
Joined: 8 years ago
We have not received a reply from you for over a couple of weeks, therefore we will be closing this topic. Please create a new one if you require any additional help.
Thank You!
