Code Troubleshoot Request – Compare Comment Author to Current User

Howdy, folks. I’m using the Comment Vote plugin on my site. Loving the plugin, but I’m attempting to add functionality. The plugin doesn’t prevent the author of a comment from rating his own comment.

The applicable function code is here.

I’m using something like this

elseif( $comment_email->comment_author_email == $current_user->user_email ) {
$response['message'] = 'You cannot rate your own comment.';
}

I’m trying to test if the current logged-in user’s email matches the comment author’s email, and if so, return the proper response. All the coding I know is from banging around in WordPress for the past month, so I’m sure I’ve just screwed up the PHP.

Anyone have a moment to suggest where I went wrong? Thanks. ??