2.9.2: Weird behaviour with comments

There are no outstanding comment issues of this nature in the current version of WordPress. Have you tried:

– deactivating all plugins to see if this resolves the problem? If this works, re-activate the plugins one by one until you find the problematic plugin(s).

– switching to the default theme to rule out any theme-specific problems?

Yes, I deactivated all plugins and tried also several themes, including the default themes from wordpress. But I thought, that this includes also an error, that is why I installed a new theme. Furthermore, I did not use any commets related plugins.

So I guess, since no one else seems to have this problem, that something with my database is broken?

I could isolate the error a litte bit.

Responsible are the functions get_post in wp-includes/post.php

function &get_post(&$post, $output = OBJECT, $filter = 'raw') {
        global $wpdb;
        $null = null;

        if ( empty($post) ) {
                if ( isset($GLOBALS['post']) )
                        $_post = & $GLOBALS['post'];
                else
                        return $null;
        } elseif ( is_object($post) && empty($post->filter) ) {
                _get_post_ancestors($post);
                $_post = sanitize_post($post, 'raw');
                wp_cache_add($post->ID, $_post, 'posts');
        } else {
                if ( is_object($post) )
                        $post = $post->ID;
                $post = (int) $post;
                if ( ! $_post = wp_cache_get($post, 'posts') ) {
                        $_post = $wpdb->get_row($wpdb->prepare("SELECT * FROM $wpdb->posts WHERE ID = %d LIMIT 1", $post));
                        if ( ! $_post )
                                return $null;
                        _get_post_ancestors($_post);
                        $_post = sanitize_post($_post, 'raw');
                        wp_cache_add($_post->ID, $_post, 'posts');
                }
        }

        if ($filter != 'raw')
                $_post = sanitize_post($_post, $filter);

        if ( $output == OBJECT ) {
                return $_post;
        } elseif ( $output == ARRAY_A ) {
                $__post = get_object_vars($_post);
                return $__post;
        } elseif ( $output == ARRAY_N ) {
                $__post = array_values(get_object_vars($_post));
                return $__post;
        } else {
                return $_post;
        }
}

and the function comments_open in wp-includes/comment-template.php.

function comments_open( $post_id=NULL ) {

        $_post = get_post($post_id);

        $open = ( 'open' == $_post->comment_status );
        return apply_filters( 'comments_open', $open, $post_id );
}

With printf-debuging I found out, that in the function get_post, the return value $_post is an object and in comments_open, where it is called, it is no longer an opject but just a number. The number is the id of the current comment.

So I guess, there is rather an issue with my php set-up rather with wordpress. Unfortunately, I have no clue, where and how I can fix this.

Anyone any idea?

Hey Guys,

I was so despreate, that I have choosen the brute force method, and so I reinstalled the latest wordpress version and restored my backup.
And now, its unbelievable, everything works fine. I have no clue what happened.

I have exactly the same problem.

I am not confident to restore the previous version of WordPress…

Peter