default_meta_type_metadata Filter

So, you’re diving into the world of WordPress hooks, huh? Well, you’re in the right place. Let’s chat about the default_meta_type_metadata filter. This powerful hook is used to modify metadata for various object types like posts, comments, terms, and users. Understanding this hook can take your WordPress development to the next level.

The dynamic part, $meta_type, lets you target specific meta object types. Before you can use this filter, you’ll need to register it using add_filter. You can pop this code into your theme’s functions.php file or, even better, create a custom WordPress plugin. WePlugins always recommends the plugin route to avoid issues during theme updates.

Got a hook you need to ditch? Use remove_filter to take care of that.

Parameters

• $value : (mixed) The value to return, either a single metadata value or an array of values depending on the value of $single.
• $object_id : (int) ID of the object metadata is for.
• $meta_key : (string) Metadata key.
• $single : (bool) Whether to return only the first value of the specified $meta_key.
• $meta_type : (string) Type of object metadata is for. Accepts ‘post’, ‘comment’, ‘term’, ‘user’, or any other object type with an associated meta table.

Example 1: Basic Filter Usage

Here’s a simple example to get you started with the default_meta_type_metadata filter.

        function weplugins_modify_default_meta_type_metadata_defaults($value, $object_id, $meta_key, $single, $meta_type) { 
            // Update the $value variable according to your website requirements and return this variable.
            return $value; 
        }
        add_filter("default_meta_type_metadata", "weplugins_modify_default_meta_type_metadata_defaults", 10, 5);
        

Example 2: Conditional Metadata Modification

Let’s spice things up a bit by adding some conditional logic to our metadata adjustments.

        function weplugins_conditional_meta_update($value, $object_id, $meta_key, $single, $meta_type) { 
            if ($meta_key == 'special_key') {
                $value = 'Special Value';
            }
            return $value;
        }
        add_filter("default_meta_type_metadata", "weplugins_conditional_meta_update", 10, 5);
        

Example 3: Removing a Filter

If you need to remove a previously added filter, here’s how you can do it.

        remove_filter("default_meta_type_metadata", "weplugins_modify_default_meta_type_metadata_defaults", 10, 5);
        

Make sure you provide the same callback function name, priority, and number of arguments when removing the hook callback.

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If you’re finding it tricky to get your hooks just right or need some customization, don’t hesitate to contact us. We’re here to help!