Limit user to one comment

Question

is there a nice function I can use to limit logged in users to one comment per post? I'm setting up a review system and only one review permitted per user. Thanks.

Answer 1

<?php
global $current_user;
$args = array(
    'user_id' => $current_user->ID,
    'post_id' = 100, // post ID. Can be '$post->ID' depending where you are calling this from
    'count' => true
    );
if(get_comments($args) >= 1){
    echo 'disabled';
} else {
    comment_form();
}

Function_Reference/get_comments

Based on AndrettiMilas code.

Answer 2

See if this still works:

<?php
global $current_user;
$args = array('user_id' => $current_user->ID);
$usercomment = get_comments($args);
if(count($usercomment) >= 1){
    echo 'disabled';
} else {
    comment_form();
}
?>

My source