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

2 comments

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

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2. You can hook into the is_protected_meta filter and return true for any custom field you want to hide.

   add_filter('is_protected_meta', 'my_is_protected_meta_filter', 10, 2);
   function my_is_protected_meta_filter($protected, $meta_key) {
       return $meta_key == 'meta-name' ? true : $protected;
   }
   

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