Warning: in_array() expects parameter 2 to be array,

Hello @soldier99

Try please to Save changes in the Filters -> Settings -> URL var names tab and let me know if it was helpful.

Unfortunately not. I have no filters created yet and there is this error after activating the plugin

Warning: in_array() expects parameter 2 to be array, string given in /filter-everything/src/Admin/AdminHooks.php on line 136

If I create a filter, another one appears on top:

Warning: Invalid argument supplied for foreach() in /filter-everything/src/Admin/FilterSet.php on line 191

Now, creating a filter this error message disappears but if I add the filter to the sidebar I see ca 15 similal errors like this one on frontend and frontend site is messed up:

Warning: array_merge(): Expected parameter 2 to be an array, null given in /filter-everything/src/Entities/TaxonomyEntity.php on line 98

Thanks,
J.

• This reply was modified 3 years, 3 months ago by Janke.

Hi @soldier99

I checked this on my side and it seems you have compatibility issue with some other plugins or custom code that modifies returning value of the WordPrees
get_option() function.

You can check it by disabling other plugins one by one. Or check it with another theme.

Or maybe, although this is less likely you have old PHP version, that doesn’t support [] as new arrays.

Let me please know, if it was helpful for you.

• This reply was modified 3 years, 3 months ago by stepasyuk.

@soldier99 was your problem with warnings in

Warning: in_array() expects parameter 2 to be array, string given in /filter-everything/src/Admin/AdminHooks.php on line 136

and

Warning: Invalid argument supplied for foreach() in /filter-everything/src/Admin/FilterSet.php on line 191

solved or it still presents?

There is something weird going on. As I said in my first post I deactivated all plugins except Filter everything and it had this issue.
I tested in 4 sites, all of them have php 7.4.

They worked well before but crashed overnight…

After my last answer I<u> did not change anything.</u> BUT somehow over the other night 2 of the sites came back alive and started to work but 2 of the sites is still having this issue.

Someone reported today tha he is having the same issue but as I see this post is deleted by the moderator.

he wrote:

Notice: Undefined offset: 888 in /wp-content/plugins/filter-everything/src/Entities/TaxonomyEntity.php on line 98

Warning: array_merge(): Expected parameter 2 to be an array, null given in /wp-content/plugins/filter-everything/src/Entities/TaxonomyEntity.php on line 98

Warning: array_unique() expects parameter 1 to be array, null given in /wp-content/plugins/filter-everything/src/Entities/TaxonomyEntity.php on line 98

I think 888 is a product category ID.

I resolved editing your plugin, file src/Entities/TaxonomyEntity.php, lines 89~102:

        // Fix for counts for parent, when 'include_children=true'
        // Add posts from children terms to their parents
        // To make correct counts for their parents
        if( ! empty( $this->descendants ) ){
            $parents = array_keys( $this->descendants );

            foreach ( $ids as $term_id => $post_ids_array ){
                if( in_array( $term_id, $parents ) ){
                    foreach ( $this->descendants[$term_id] as $child_term_id ){
                        $ids[$term_id] = array_unique( array_merge( $ids[$term_id], $ids[$child_term_id] ) );
                    }
                }
            }
        }

With this:

        // Fix for counts for parent, when 'include_children=true'
        // Add posts from children terms to their parents
        // To make correct counts for their parents
        if( ! empty( $this->descendants ) ){
            $parents = array_keys( $this->descendants );

            foreach ( $ids as $term_id => $post_ids_array ){
                if( in_array( $term_id, $parents ) ){
                    foreach ( $this->descendants[$term_id] as $child_term_id ){
                        if (empty($ids[$child_term_id])) {
                            continue;
                        }

                        $ids[$term_id] = array_unique( array_merge( $ids[$term_id], $ids[$child_term_id] ) );
                    }
                }
            }
        }

But I don’t know if it can be a correct solution.

• This reply was modified 3 years, 3 months ago by Janke.

The problem:

Expected parameter 2 to be an array, null given in /wp-content/plugins/filter-everything/src/Entities/TaxonomyEntity.php on line 98

was a really bug and I already solved it in the latest plugin version 1.2.4
It was related with case, when a parent filter term had empty (0 posts) child term.

But this problem:

Warning: in_array() expects parameter 2 to be array, string given in /filter-everything/src/Admin/AdminHooks.php on line 136

means that the get_option() function returns something that is not an array (but should be array) It looks like it is something specific for your case. If you disabled all plugins except Filter Everything it means, that data stored in WordPress options is wrong. Maybe updating of these data will help you. (you have to create filters with URL var names and save them)

I can check this on your site to be sure it is not common problem if you contact me via Facebook or so (the forum rules doesn’t allow to publish my email here, but it’s easy to find my contacts in Google)

Updating the plugin fixed all the issues. Thank you for your quick support.

Great! Several stars, for example 5 in review would be not bad for the plugin ??