How to use block_editor_preload_paths filter in WordPress

Example 1: Basic Usage of block_editor_preload_paths

In this example, we demonstrate how to modify the preload paths using the block_editor_preload_paths filter. We define a function weplugins_modify_block_editor_preload_paths_defaults and attach it to the hook.

    function weplugins_modify_block_editor_preload_paths_defaults($preload_paths, $selected_post) { 
        // Update the $preload_paths variable according to your website requirements.
        return $preload_paths; 
    }
    // Add the filter
    add_filter("block_editor_preload_paths", "weplugins_modify_block_editor_preload_paths_defaults", 10, 2);
    

Example 2: Conditional Modification

Sometimes, you might want to modify the preload paths conditionally. Here’s how you can do it:

    function weplugins_conditional_modify_paths($preload_paths, $selected_post) { 
        if ($selected_post->post_type == 'page') {
            // Modify $preload_paths for pages only.
        }
        return $preload_paths; 
    }
    add_filter("block_editor_preload_paths", "weplugins_conditional_modify_paths", 10, 2);
    

Example 3: Removing the Hook

If you need to remove a previously registered hook, use remove_filter. This can be useful for debugging or when the hook is no longer needed.

    // Remove the filter
    remove_filter("block_editor_preload_paths", "weplugins_modify_block_editor_preload_paths_defaults", 10, 2);
    

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

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