Recently, I had to make it so you could filter posts in wp-admin by custom fields. By default, the search in wp-admin searches by title.
Add the following code to your functions.php file, and then you can search by custom field values in wp-admin:
It’s handy when you have a post type that uses several custom fields and you want to filter by the value instead of just the title, so enjoy this handy tool.
Filed Under: Code