문제

I want to add the categories ID to admin page. I call it for my functions.php: require_once('includes/categories_custom_id.php'); The part of code:

function categoriesColumnsHeader($columns) {
        $columns['catID'] = __('ID');
        return $columns;
}
add_filter( 'manage_categories_columns', 'categoriesColumnsHeader' );
function categoriesColumnsRow($argument, $columnName, $categoryID){
        if($columnName == 'catID'){
                return $categoryID;
        }
}
add_filter( 'manage_categories_custom_column', 'categoriesColumnsRow', 10, 3 );

But it doesn't work. Any idea, how to do that?

Thanks in advance.

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