How can I remove specific custom post meta from the “Custom Fields” fieldset?

Question

I've created a custom meta box to handle certain custom post meta fields and I don't want the clutter of having these custom fields duplicated down in the "Custom Fields" area.

How can I remove specific custom post meta from the "Custom Fields" fieldset?

Answer 1

To hide a custom field from the "Custom Fields" section, prefix it with an underscore. So add_post_meta($id, 'name', 'value'); becomes add_post_meta($id, '_name', 'value');.

Here's a good reference for backup:

• How to Hide Your Plugin's Custom Fields