Add Column In Backend Posts List

This one is for pages

function my_custom_pages_columns( $columns ) {

   	$columns['eu_page'] = 'EU Page';
 	return $columns;
}
add_filter( 'manage_pages_columns', 'my_custom_pages_columns' );



function custom_page_column_content( $column_name, $post_id ) {
	if( $column_name == 'eu_page' ) {
       $parents = get_post_ancestors( $post_id ); 
			if (in_array(2996, $parents) || $post_id=="2996") {
				echo "<div class='ib yes_eu_page'>EU</div>";
			}
    }
}

add_action( 'manage_pages_custom_column', 'custom_page_column_content', 10, 2 );

This one is for Users

add_filter('manage_users_columns', 'add_status_column');
add_filter('manage_users_custom_column', 'manage_status_column', 10, 3);

function add_status_column($columns) {
       	$columns['live_status'] = 'ID';
       	$columns['email_verified'] = 'Email Verified';
 	return $columns;

}

function manage_status_column($empty='', $column_name, $id) {
	if( $column_name == 'live_status' ) {
		return $id;

    	}
    	
	if( $column_name == 'email_verified' ) {
	    $added_meta = get_the_author_meta( 'added_meta', $id );
		    if ($added_meta['sm_confirmed_email_address'] != true) {
			    $return_data ='<div class="no_very">NO</div>';
		    }else{
			    $return_data ='<div class="yes_very">YES</div>';
		    }
		return $return_data;

    	}
}