Kommentareintrag funktioniert nicht mehr!

<?php
/**
 * Handles Comment Post to WordPress and prevents duplicate comment posting.
 *
 * @package WordPress
 */


if ( 'POST' != $_SERVER['REQUEST_METHOD'] ) {
    header('Allow: POST');
    header('HTTP/1.1 405 Method Not Allowed');
    header('Content-Type: text/plain');
    exit;
}


/** Sets up the WordPress Environment. */
require( dirname(__FILE__) . '/wp-load.php' );


nocache_headers();


$comment_post_ID = (int) $_POST['comment_post_ID'];


$status = $wpdb->get_row( $wpdb->prepare("SELECT post_status, comment_status FROM $wpdb->posts WHERE ID = %d", $comment_post_ID) );


if ( empty($status->comment_status) ) {
    do_action('comment_id_not_found', $comment_post_ID);
    exit;
} elseif ( !comments_open($comment_post_ID) ) {
    do_action('comment_closed', $comment_post_ID);
    wp_die( __('Sorry, comments are closed for this item.') );
} elseif ( in_array($status->post_status, array('draft', 'pending') ) ) {
    do_action('comment_on_draft', $comment_post_ID);
    exit;
} else {
    do_action('pre_comment_on_post', $comment_post_ID);
}


$comment_author       = ( isset($_POST['author']) )  ? trim(strip_tags($_POST['author'])) : null;
$comment_author_email = ( isset($_POST['email']) )   ? trim($_POST['email']) : null;
$comment_author_url   = ( isset($_POST['url']) )     ? trim($_POST['url']) : null;
$comment_content      = ( isset($_POST['comment']) ) ? trim($_POST['comment']) : null;
$comment_twitusr      = ( isset($_POST['twitusr']) ) ? trim($_POST['twitusr']) : null;


// If the user is logged in
$user = wp_get_current_user();
if ( $user->ID ) {
    if ( empty( $user->display_name ) )
        $user->display_name=$user->user_login;
    $comment_author       = $wpdb->escape($user->display_name);
    $comment_author_email = $wpdb->escape($user->user_email);
    $comment_author_url   = $wpdb->escape($user->user_url);


$sql = "SELECT USER_ID, FIELD_ID, VALUE FROM wp_cimy_uef_data WHERE USER_ID = ".$user->ID." AND FIELD_ID = 1";
$a = mysql_query($sql);
$row = mysql_fetch_assoc($a) or die(mysql_error());


    $comment_twitusr      = $row['VALUE'];


    if ( current_user_can('unfiltered_html') ) {
        if ( wp_create_nonce('unfiltered-html-comment_' . $comment_post_ID) != $_POST['_wp_unfiltered_html_comment'] ) {
            kses_remove_filters(); // start with a clean slate
            kses_init_filters(); // set up the filters
        }
    }
} else {
    if ( get_option('comment_registration') || 'private' == $status->post_status )
        wp_die( __('Sorry, you must be logged in to post a comment.') );
}


$comment_type = '';


if ( get_option('require_name_email') && !$user->ID ) {
    if ( 6 > strlen($comment_author_email) || '' == $comment_author )
        wp_die( __('Error: please fill the required fields (name, email).') );
    elseif ( !is_email($comment_author_email))
        wp_die( __('Error: please enter a valid email address.') );
}


if ( '' == $comment_content )
    wp_die( __('Error: please type a comment.') );


$comment_parent = isset($_POST['comment_parent']) ? absint($_POST['comment_parent']) : 0;


$commentdata = compact('comment_post_ID', 'comment_author', 'comment_author_email', 'comment_author_url', 'comment_content', 'comment_type', 'comment_parent', 'user_ID', 'comment_twitusr');


$comment_id = wp_new_comment( $commentdata );


$comment = get_comment($comment_id);
if ( !$user->ID ) {
    $comment_cookie_lifetime = apply_filters('comment_cookie_lifetime', 30000000);
    setcookie('comment_author_' . COOKIEHASH, $comment->comment_author, time() + $comment_cookie_lifetime, COOKIEPATH, COOKIE_DOMAIN);
    setcookie('comment_author_email_' . COOKIEHASH, $comment->comment_author_email, time() + $comment_cookie_lifetime, COOKIEPATH, COOKIE_DOMAIN);
    setcookie('comment_author_url_' . COOKIEHASH, esc_url($comment->comment_author_url), time() + $comment_cookie_lifetime, COOKIEPATH, COOKIE_DOMAIN);
}






$location = empty($_POST['redirect_to']) ? get_comment_link($comment_id) : $_POST['redirect_to'] . '#comment-' . $comment_id;
$location = apply_filters('comment_post_redirect', $location, $comment);


wp_redirect($location);


?>