Automattic/Post-Meta-Inspector — pull request #5 by logikal16 (2012-10-06 08:57:10+00:00)
Title: Simplify the hook to exclude meta_keys

This patch makes it easier to exclude multiple meta keys.

It also optimizes the hook so that apply_filters is only called once, instead of once-per-row.

Example of improved hooked usage:

add_filter( 'pmi_ignore_post_meta_key', 'example_excluded_keys' );

function my_custom_meta_exclude($ignored_keys) {
$more_keys = array('key1', 'key2');
return $ignored_keys + $more_keys;
}